List of the Cenozoic life of Wyoming
Appearance
This list of the Cenozoic life of Wyoming contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Wyoming and are between 66 million and 10,000 years of age.
A
[edit]- †Aaptoryctes
- †Absarokius
- †Absarokius abbotti
- †Absarokius gazini – type locality for species
- †Absarokius metoecus – type locality for species
- †Abuta – or unidentified related form
- †Acacia
- †Acarictis
- †Acarictis ryani – type locality for species
- Accipiter
- Acer
- †Aceroryctes – type locality for genus
- †Aceroryctes dulcis – type locality for species
- †Achaenodon
- †Achaenodon insolens – type locality for species
- †Achaenodon robustus – type locality for species
- †Acidomomys – type locality for genus
- †Acidomomys hebeticus – type locality for species
- †Acmeodon
- †Acocephalus
- †Acocephalus adae – type locality for species
- †Acritoparamys
- Acrostichum
- †Adilophontes – type locality for genus
- †Adilophontes brachykolos – type locality for species
- †Adjidaumo
- †Adjidaumo burkei – tentative report
- †Adjidaumo craigi – or unidentified comparable form
- †Adjidaumo minimus
- †Adocus
- †Adunator
- Aegialia
- †Aegialia rupta – type locality for species
- Aegolius
- †Aepycamelus
- †Aerugoamnis – type locality for genus
- †Aerugoamnis paulus – type locality for species
- †Aesculus
- †Afairiguana – type locality for genus
- †Afairiguana avius – type locality for species
- †Ageina
- †Ageitodendron
- Agelaius
- †Agnotocastor
- †Agnotocastor galushai – type locality for species
- †Agriochoerus
- †Agriochoerus maximus
- †Agriochoerus minimus – or unidentified comparable form
- Ailanthus
- †Alagomys
- †Alagomys russelli – type locality for species
- †Alastor
- †Alastor solidescens – type locality for species
- †Albertanella – or unidentified comparable form
- Alces
- †Aletodon
- †Aletodon conardae – type locality for species
- †Aletodon gunnelli – type locality for species
- †Aletodon quadravus
- †Aletomeryx
- †Aletornis – type locality for genus
- †Aletornis bellus – type locality for species
- †Aletornis gracilis – type locality for species
- †Aletornis nobilis – type locality for species
- †Aletornis pernix – type locality for species
- †Aletornis venustus – type locality for species
- Aleurites
- †Alismaphyllites
- †Allantodiopsis
- †Allognathosuchus
- †Allognathosuchus heterodon
- †Allognathosuchus polyodon
- †Allognathosuchus wartheni – type locality for species
- †Allomys
- †Allophylus
- Alnus[citation needed]
- †Alphagaulus
- †Alticonus
- †Alveojunctus
- †Alveugena
- †Alveugena carbonensis – type locality for species
- †Amaramnis
- †Amaramnis gregoryi – type locality for species
- †Ambloctonus
- †Ambloctonus major
- †Ambloctonus priscus – or unidentified comparable form
- †Ambloctonus sinosus
- †Ameiseophis
- †Ameiseophis robinsoni – type locality for species
- †Amelotabes – type locality for genus
- †Amelotabes simpsoni – type locality for species
- Amentotaxus
- Amia
- †Amitabha – type locality for genus
- †Amitabha urbsinterdictensis – type locality for species
- †Ampelopsis
- †Amphechinus
- †Amphechinus ellicottae – type locality for species
- †Amphigyion
- †Amphilemur
- †Amphiplaga
- Amphiuma
- †Amphiuma jepseni – type locality for species
- †Ampliconus
- †Ampliconus antoni – type locality for species
- Amyda
- †Amyda egregia – type locality for species
- †Amyda exquisita – type locality for species
- †Amyda mira – type locality for species
- †Amynodon
- †Anacardites
- Anaclinia – tentative report
- †Anacodon
- †Anacodon nexus – type locality for species
- †Anacodon ursidens
- Anamirta – or unidentified comparable form
- †Anaptomorphus
- †Anaptomorphus aemulus – type locality for species
- †Anaptomorphus westi – type locality for species
- Anas
- †Anas acuta
- Anas clypeata
- †Anas crecca
- Anas platyrhynchos
- †Anas schneideri – type locality for species
- †Anatella
- †Anatella tacita – type locality for species
- †Anconodon
- †Anemia
- †Anemorhysis
- †Anemorhysis natronensis – type locality for species
- †Anemorhysis pattersoni – type locality for species
- †Anemorhysis sublettensis – type locality for species
- †Anemorhysis wortmani – type locality for species
- †Anilioides
- †Anisonchus
- †Anisonchus sectorius
- †Anisonchus willeyi – type locality for species
- †Ankylodon
- †Ankylodon annectens – or unidentified comparable form
- †Anniealexandria – type locality for genus
- †Anniealexandria gansi – type locality for species
- Anobium
- †Anobium deceptum – type locality for species
- †Anobium lignitum – type locality for species
- †Anobium ovale – type locality for species
- †Anolbanolis – type locality for genus
- †Anolbanolis banalis – type locality for species
- †Anolbanolis geminus – type locality for species
- †Anomoemys
- †Anosteira
- †Anosteira ornata
- †Anosteira radulina – type locality for species
- †Anosteira trionychoides
- †Antherophagus
- †Antherophagus priscus – type locality for species
- Anthonomus
- †Anthonomus revictus – type locality for species
- †Anthonomus soporus – type locality for species
- †Antiacodon
- †Antiacodon pygmaeus – type locality for species
- †Antiacodon vanvaleni – type locality for species
- †Antiacodon venustus – type locality for species
- Antilocapra
- Apalone
- †Apalone extensa – type locality for species
- †Apalone heteroglypta – type locality for species
- †Apalone postera – type locality for species
- †Apatemys
- †Apatemys bellulus – type locality for species
- †Apatemys bellus
- †Apatemys chardini – or unidentified comparable form
- †Apatemys hendryi – type locality for species
- †Apatemys rodens
- †Aphaena
- †Aphaena rotundipennis – type locality for species
- †Apheliscus – type locality for genus
- †Apheliscus chydaeus – type locality for species
- †Apheliscus insidiosus
- †Apheliscus nitidus
- †Apheliscus wapitiensis – type locality for species
- †Aphelops
- †Aphronorus
- †Aphronorus fraudator
- †Aphronorus orieli – type locality for species
- †Aphronorus ratatoski – type locality for species
- †Apodosauriscus – type locality for genus
- †Apodosauriscus minutus – type locality for species
- †Apodosauriscus thermophilus – type locality for species
- †Apriculus
- †Apriculus praeteritus – type locality for species
- †Apternodus
- †Apternodus brevirostris – type locality for species
- †Apternodus dasophylakas – type locality for species
- †Apternodus gregoryi – type locality for species
- †Apternodus iliffensis
- †Apternodus major – type locality for species
- Aquila
- †Aquila antiqua – type locality for species
- Aquila chrysaetos
- Aralia
- †Araliophyllum
- Araneus
- †Arapahovius
- †Arapahovius advena – type locality for species
- †Arapahovius gazini – type locality for species
- Araucaria
- †Archaeocyon
- †Archaeolagus
- †Archaeotherium
- †Archaeotherium minimus
- †Archaeotherium mortoni
- †Archaeotherium palustris – type locality for species
- †Archaerhineura – type locality for genus
- †Archaerhineura mephitis – type locality for species
- Arcoa[1]
- †Arcoa lindgreni – type locality for species[1]
- †Arctocyon
- †Arctodontomys
- †Arctodontomys nuptus
- †Arctodontomys simplicidens
- †Arctodontomys wilsoni – type locality for species
- †Arctodus
- †Arctostaphylos
- †Arctostylops
- †Arecipites
- †Arenahippus
- †Arenahippus aemulor – type locality for species
- †Arenahippus pernix – type locality for species
- †Arfia
- †Arfia junnei
- †Arfia opisthotoma
- †Arfia shoshoniensis
- †Arfia zele – type locality for species
- Aristolochia
- †Armintodelphys
- †Armintomys
- †Arpadosaurus – type locality for genus
- †Arpadosaurus gazinorum – type locality for species
- †Arpadosaurus sepulchralis – type locality for species
- †Artimonius
- Artocarpus – tentative report
- †Asarkina
- †Asarkina quadrata – type locality for species
- †Asiabradypus – or unidentified comparable form
- Asio
- †Asplenium
- †Astephus
- †Asterotrygon
- Astronium
- †Athyana
- †Aulolithomys
- †Aulolithomys bounites
- †Aulolithomys vexilliames – type locality for species
- †Auroralestes
- †Auxontodon
- †Averrhoites
- †Avunculus
- †Avunculus didelphodonti – or unidentified comparable form
- †Axestemys – type locality for genus
- †Axestemys byssina – type locality for species
- †Axestemys cerevisia – type locality for species
- †Axestemys salebrosa – type locality for species
- †Axestemys uintaensis – type locality for species
- †Aycrossia
- Aythya
- Azolla
- †Azygonyx
- †Azygonyx ancylion – type locality for species
- †Azygonyx grangeri
- †Azygonyx xenicus – type locality for species
B
[edit]- †Babibasiliscus – type locality for genus
- †Babibasiliscus alxi – type locality for species
- †Baena
- †Baena arenosa – type locality for species
- †Bahndwivici – type locality for genus
- †Bahndwivici ammoskius – type locality for species
- †Baioconodon
- †Baioconodon denverensis – or unidentified comparable form
- †Baioconodon middletoni – type locality for species
- †Baioconodon nordicus
- †Baioconodon wovokae
- †Baiotomeus
- †Baltemys – type locality for genus
- †Baltemys staurogastros – type locality for species
- †Baptemys
- †Baptemys wyomingensis – type locality for species
- †Barbouromeryx – or unidentified comparable form
- †Barylambda
- †Barylambda churchilli – type locality for species
- †Barylambda faberi
- †Bathornis
- †Bathornis fricki – type locality for species
- †Bathygenys
- †Bathyopsis
- †Batodonoides
- †Batodonoides vanhouteni – type locality for species
- †Batrachosauroides – tentative report
- Bauhinia
- †Beilschmiedia
- †Berchemiopsis
- †Beringiaphyllum
- †Berosus
- †Berosus sexstriatus – type locality for species
- †Berosus tenuis – type locality for species
- †Bessoecetor
- Betula
- Biomphalaria
- Bison
- †Bisonalveus – type locality for genus
- †Bisonalveus browni – type locality for species
- †Bisonalveus holtzmani – type locality for species
- †Blechnum
- Bledius
- †Bledius adamus – type locality for species
- †Bledius faecorum – type locality for species
- †Blickomylus
- †Boavus – type locality for genus
- †Boavus brevis – type locality for species
- †Boavus idelmani – type locality for species
- †Boavus occidentalis – type locality for species
- Boletina
- †Boletina paludivaga – type locality for species
- †Boletina umbratica – type locality for species
- †Bootherium
- †Borealosuchus
- †Borealosuchus formidabilis
- †Borealosuchus wilsoni – type locality for species
- †Botauroides – type locality for genus
- †Botauroides parvus – type locality for species
- †Bouromeryx
- †Boverisuchus
- †Bownomomys – type locality for genus[2]
- †Bownomomys americanus – type locality for species. Formerly known as Teilhardina americana.[2]
- †Bownomomys crassidens – type locality for species. Formerly known as Teilhardina crassidens.[2]
- †Boysia – or unidentified comparable form
- †Brachianodon
- †Brachianodon westorum – type locality for species
- †Brachycrus
- †Brachyerix
- †Brachyhyops
- †Brachyhyops viensis
- †Brachyhyops wyomingensis – type locality for species
- †Brachyrhynchocyon
- †Brachyuranochampsa – type locality for genus
- †Brachyuranochampsa eversolei – type locality for species
- Bracon
- †Bracon laminarum – type locality for species
- Branta
- †Bridgeremys
- †Bridgeremys pusilla – type locality for species
- †Brontops
- †Browniea
- †Bryophyte – or unidentified related form
- Bubo
- †Bunophorus
- †Bunophorus etsagicus
- †Bunophorus grangeri
- †Bunophorus macropternus
- †Bunophorus robustus
- †Bunophorus sinclairi – type locality for species
- †Bunrsera
- Buteo
- †Buteo jamaicensis
- †Buteo lagopus
- †Buteo regalis – or unidentified comparable form
- Buteogallus
C
[edit]- †Caedocyon
- †Caedocyon tedfordi – type locality for species
- †Caenolambda – type locality for genus
- †Caenolambda jepseni – type locality for species
- †Caenolambda pattersoni – type locality for species
- †Caenopus
- †Caenopus yoderensis – type locality for species
- †Caesalpinia
- †Caesalpinites
- †Caesalpinites falcata – type locality for species
- †Calamagras
- †Calamagras angulatus – or unidentified comparable form
- †Calamagras platyspondyla
- †Calamagras primus – type locality for species
- †Calamagras weigeli
- †Calamospiza
- †Calandrites
- †Calcardea – type locality for genus
- †Calcardea junnei – type locality for species
- Calidris
- †Callomyia
- †Callomyia torporata – type locality for species
- †Callospilopteron – type locality for genus
- †Callospilopteron ocellatum – type locality for species
- †Calycites
- †Calycites ardtunensis
- †Calycites hexaphylla
- †Calycites mikanoides
- †Calycites polysepala
- †Calycites RR58 informal
- †Calycites RR71 informal
- †Camelops
- †Camelops hesternus – or unidentified comparable form
- †Canarium
- †Canavalia
- Canis
- †Cantius
- †Cantius abditus – type locality for species
- †Cantius frugivorus
- †Cantius mckennai
- †Cantius nunienus
- †Cantius ralstoni
- †Cantius simonsi – type locality for species
- †Cantius torresi
- †Cantius trigonodus – type locality for species
- †Capacikala
- †Capacikala parvus – type locality for species
- Capella
- †Carabites
- †Carabites kincaidi – type locality for species
- Caracara
- †Cardichelyon – type locality for genus
- †Cardichelyon rogerwoodi – type locality for species
- †Cardiolophus
- †Cardiolophus radinskyi – type locality for species
- †Cardiolophus semihians
- Cardiospermum
- Carduelis
- †Carpites
- †Carpodaptes
- †Carpolestes
- †Carpolestes dubius – type locality for species
- †Carpolestes nigridens
- †Carpolestes simpsoni – type locality for species
- †Carpolithes
- Carya
- Castanea
- Castor
- †Catopsalis
- Cedrela
- †Cedrelospermum
- †Cedrobaena – type locality for genus
- †Cedrocherus
- †Cedrocherus aceratus – type locality for species
- †Cedrocherus ryani – type locality for species
- †Cedromus
- †Celastrus
- †Celliforma
- Celtis
- †Centetodon
- †Centrinus
- †Centrinus diruptus – type locality for species
- †Centrocercus
- †Cephalogale
- †Ceratophyllum
- †Ceratosuchus
- Cercidiphyllum
- †Cercidiphyllum arcticum
- †Cercidiphyllum articum
- †Cercidiphyllum BB21 informal
- †Cercidiphyllum BB34-52 informal
- †Cercidiphyllum genetrix
- †Cercidiphyllum tiny winged seeds informal
- †Cercidiphyllum tiny wingedseeds informal
- †Cercopis
- †Cercopis astricta – type locality for species
- †Cercopites – type locality for genus
- †Cercopites calliscens – type locality for species
- †Cercopites umbratilis – type locality for species
- †Ceutholestes
- †Chadrolagus
- †Chaetoptelea
- †Chaetoptelea microphylla
- †Chaetoptelea pseudofulva – tentative report
- †Chalicomomys
- †Chalicomomys willwoodensis – type locality for species
- †Champsosaurus
- †Chaneya
- Chara
- Charadrius
- Charina
- Cheilosia
- †Cheilosia ampla – type locality for species
- †Cheilosia scudderi
- †Chelomophrynus – type locality for genus
- †Chelomophrynus bayi – type locality for species
- †Chilostigma – tentative report
- †Chiromyoides
- †Chiromyoides caesor – type locality for species
- †Chiromyoides major – type locality for species
- †Chiromyoides minor – type locality for species
- †Chiromyoides potior
- Chironomus
- †Chironomus septus – type locality for species
- †Chisternon
- †Chisternon hebraicum – type locality for species
- †Chisternon undatum – type locality for species
- †Chlororhysis
- †Chlororhysis incomptus – type locality for species
- †Chlororhysis knightensis – type locality for species
- †Choctawius – or unidentified comparable form
- †Cholula
- †Cholula triguttata – type locality for species
- †Choragus
- †Choragus fictilis – type locality for species
- †Chordeiles
- †Chriacus
- †Chumashius
- †Cicadula
- †Cicadula saxosa – type locality for species
- †Cimolestes
- †Cinnamomophyllum
- †Cinnamomophyllum RR19 informal
- Cinnamomum
- Circus
- †Cissites
- Cissus
- †Cixius – tentative report
- †Cixius hesperidum – type locality for species
- Cladrastis
- †Cladrastis GR579 informal
- †Cladrastis GR580 informal
- †Claenodon
- †Cnemidaria
- †Coccothraustes
- Cocculus
- †Coelidia
- †Coelidia wyomingensis – type locality for species
- Colaptes
- †Colodon
- †Colpocherus
- †Colpoclaenus
- †Colpoclaenus keeferi – type locality for species
- †Colpoclaenus procyonoides – or unidentified comparable form
- Colymbus
- †Compsemys
- †Conacodon
- †Conacodon cophater – or unidentified comparable form
- †Conacodon delphae
- †Coniophis
- †Coniophis carinatus – type locality for species
- †Coniophis platycarinatus – type locality for species
- †Copecion
- †Copedelphys
- †Copelemur
- †Copelemur australotutus – type locality for species
- †Copelemur praetutus
- †Copelemur tutus
- †Copemys
- †Coriphagus
- †Coriphagus encinensis – or unidentified comparable form
- †Coriphagus montanus
- †Corizus – tentative report
- †Corizus guttatus – type locality for species
- †Cormocyon
- Cornus
- Corvus
- †Corylites
- †Corylites FW01 informal
- †Corylus
- Corymbites
- †Corymbites velatus – type locality for species
- †Coryphodon
- †Cranea
- Crataegus
- †Credneria
- †Credneria daturaefolia – tentative report
- †Credneria pachyphylla
- †Cristadjidaumo
- †Cristadjidaumo skinneri – type locality for species
- Crocodylus
- †Crocodylus affinis – type locality for species
- †Crocodylus ziphodon – type locality for species
- †Cryptocephalus
- †Cryptocephalus vetustus – type locality for species
- Cryptorhynchus
- †Cryptorhynchus annosus – type locality for species
- Cryptotis
- Culex
- †Culex damnatorum – type locality for species
- †Cupanieidites
- †Cupidinimus
- †Cycadopites
- Cyclocarya
- †Cyclurus
- †Cylindrodon
- †Cylindrodon natronensis – type locality for species
- †Cylindrodon solarborus – type locality for species
- †Cynarctoides
- †Cynarctoides acridens
- †Cynarctoides harlowi
- †Cynarctoides luskensis – type locality for species
- †Cyperacites
- †Cyriacotherium
- †Cyriacotherium argyreum – type locality for species
- †Cyriacotherium psamminum – type locality for species
- †Cyrilavis
- †Cyrilavis olsoni – type locality for species
- †Cyrtomenus
- †Cyrtomenus concinnus – type locality for species
D
[edit]- †Dalbergia
- †Daphoenictis
- †Daphoenodon
- †Daphoenodon falkenbachi – type locality for species
- †Daphoenodon niobrarensis
- †Daphoenodon skinneri – type locality for species
- †Daphoenodon superbus
- †Daphoenus
- †Dartonius
- Dasyatis
- †Davidia
- †Dawsonicyon – type locality for genus
- †Dawsonicyon isami – type locality for species
- †Dawsonomys
- †Dawsonophis – type locality for genus
- †Dawsonophis wyomingensis – type locality for species
- †Debeya
- †Decatoma
- †Decatoma antiqua – type locality for species
- †Delotrochanter
- †Delotrochanter major – type locality for species
- Dendragapus
- †Dendropanax
- †Dennstaedia
- †Dennstaedtia
- †Dennstaedtiopsis
- †Desmatippus
- †Desmatochoerus
- †Desmatoclaenus
- †Desmatolagus
- †Desmatotherium
- †Desmocyon
- †Devallia – tentative report
- †Diacocherus
- †Diacocherus meizon – type locality for species
- †Diacocherus minutus
- †Diacodexis
- †Diacodexis ilicis
- †Diacodexis kelleyi
- †Diacodexis kellyi
- †Diacodexis metsiacus
- †Diacodexis minutus
- †Diacodexis primus
- †Diacodexis secans
- †Diacodexis woltonensis – type locality for species
- †Diacodon
- †Diaplegma
- †Diaplegma obdormitum – type locality for species
- †Diatryma – type locality for genus
- †Diatryma gigantea – type locality for species
- †Diceratherium
- Dicotylophyllum
- Dicranomyia
- †Dicranomyia primitiva
- †Dicranomyia rhodolitha – type locality for species
- Dicrostonyx
- †Didelphodontine
- †Didelphodus
- †Didymictis
- †Didymictis altidens
- †Didymictis leptomylus
- †Didymictis protenus
- †Didymictis proteus
- †Didymictis vancleveae – or unidentified comparable form
- †Dillerlemur
- †Dillerlemur pagei
- †Dillerlemur robinettei – type locality for species
- †Dilophodon
- †Dilophodon destitutus – type locality for species
- †Dilophodon minusculus
- †Dinictis
- †Dinohyus
- †Diospyros
- †Dipassalus
- †Diplobunops
- †Diplocynodon
- †Diplolophus
- †Diplolophus insolens – type locality for species
- †Diplomystus
- †Dipoides
- †Dipsalidictis
- †Dipsalidictis aequidens
- †Dipsalidictis krausei – type locality for species
- †Dipsalidictis platypus – type locality for species
- †Dipsalidictis transiens
- †Dipsalodon
- †Dipsalodon churchillorum
- †Dipsalodon matthewi – type locality for species
- Dipteronia
- †Dipteronia GR551 informal
- †Dipteronia insignis
- Discus
- †Dissacus
- †Dissacus argenteus – type locality for species
- †Dissacus longaevus
- †Dissacus navajovius
- †Dissacus praenuntius
- †Distylium
- †Dithelysia
- Dolichopus
- †Dombeya
- †Domnina
- †Domnina gradata – or unidentified comparable form
- †Domninoides
- †Domninoides valentinensis – or unidentified comparable form
- †Dorraletes
- †Douglassciurus
- †Drimys
- Dryocoetes
- †Dryocoetes carbonarius – type locality for species
- †Dryocoetes impressus
- †Dryomomys – type locality for genus
- †Dryomomys dulcifer – type locality for species
- †Dryomomys szalayi – type locality for species
- Dryopteris
- †Dunnophis
- †Dunnophis microechinis – type locality for species
- †Dunnophis microechinus
- †Dysagrion – type locality for genus
- †Dysagrion fredericii – type locality for species
- †Dysagrion lakesii – type locality for species
- †Dysagrion packardii – type locality for species
E
[edit]- †Echmatemys
- †Echmatemys haydeni
- †Echmatemys lativertebralis
- †Echmatemys megaulax
- †Echmatemys rivalis – type locality for species
- †Echmatemys septaria
- †Echmatemys testudinea
- †Echmatemys wyomingensis
- †Eclytus
- †Eclytus lutatus – type locality for species
- †Ectocion
- †Ectocion cedrus – type locality for species
- †Ectocion collinus – type locality for species
- †Ectocion major – or unidentified comparable form
- †Ectocion mediotuber – type locality for species
- †Ectocion osbornianus
- †Ectocion parvus
- †Ectocion superstes
- †Ectoconus
- †Ectoconus cavigellii – type locality for species
- †Ectoconus ditrigonus
- †Ectoganus
- †Ectopistes
- †Ectopocynus
- †Ectopocynus antiquus – type locality for species
- †Ectopocynus intermedius – type locality for species
- †Ectypodus
- †Ectypodus aphronorus
- †Ectypodus childei – or unidentified comparable form
- †Ectypodus hazeni – type locality for species
- †Ectypodus laytoni – type locality for species
- †Ectypodus lovei
- †Ectypodus musculus
- †Ectypodus powelli – type locality for species
- †Ectypodus simpsoni
- †Ectypodus szalayi
- †Ectypodus tardus
- †Elaeodendron
- †Ellipsodon
- †Ellipsodon lemuroides – or unidentified comparable form
- †Elphidotarsius
- †Elphidotarsius florencae – or unidentified comparable form
- †Elphidotarsius shotgunensis
- †Elpidophorus
- †Elpidophorus elegans
- †Elpidophorus minor – or unidentified comparable form
- †Elwynella – type locality for genus
- †Elwynella oreas – type locality for species
- ���Enhydrocyon
- Enochrus
- †Enochrus primaevus – type locality for species
- †Entelodon
- †Entelodon coarctatus – or unidentified comparable form
- †Entomolestes – type locality for genus
- †Entomolestes grangeri – type locality for species
- †Entomolestes westgatei – type locality for species
- †Entomophontes – type locality for genus
- †Entomophontes hutchisoni – type locality for species
- †Entomophontes incrustatus – type locality for species
- †Entoptychus
- †Eobasileus
- †Eobucco
- †Eocalopteryx
- †Eocalopteryx atavina – type locality for species
- †Eoceornis – type locality for genus
- †Eoceornis ardetta – type locality for species
- †Eoconodon
- †Eocrex – type locality for genus
- †Eocrex primus – type locality for species
- †Eodiploglossus – type locality for genus
- †Eodiploglossus borealis – type locality for species
- †Eoerianthus
- †Eoformica
- †Eoformica pinguis – type locality for species
- †Eofringillirostrum – type locality for genus[3]
- †Eofringillirostrum boudreauxi – type locality for species[3]
- †Eoglyptosaurus
- †Eoglyptosaurus donohoei – type locality for species
- Eohiodon
- †Eohippus
- †Eoictops – type locality for genus
- †Eoictops novaceki – type locality for species
- †Eoliarus – tentative report
- †Eoliarus lutensis – type locality for species
- †Eomoropus
- †Eopodagrion – type locality for genus
- †Eopodagrion abortivum – type locality for species
- †Eopodagrion scudderi – type locality for species
- †Eorhinophrynus
- †Eorhinophrynus septentrionalis – type locality for species
- †Eoryctes – type locality for genus
- †Eoryctes melanus – type locality for species
- †Eostangeria
- †Eostrix
- †Eostrix martinellii – type locality for species
- †Eotitanops
- †Eotylopus
- †Eotylopus reedi – type locality for species
- †Eozygodactylus – type locality for genus
- †Eozygodactylus americanus – type locality for species
- †Epicaerus
- †Epicaerus dilapsus – type locality for species
- †Epicaerus effossus – type locality for species
- †Epicaerus exanimis – type locality for species
- †Epicaerus fodinarum
- †Epicaerus saxatilis – type locality for species
- †Epicaerus subterraneus
- †Epicaerus terrosus – type locality for species
- †Epihippus
- †Epitriplopus
- †Epoicotherium
- †Equisetum
- Equus
- Eremophila
- Erythrina
- †Erythrina roanensis – type locality for species
- Esox
- †Esox kronneri – type locality for species
- †Esthonyx
- †Eucastor
- †Eucommia
- †Eudaemonema
- Eugenia
- †Eugnamptus
- †Eugnamptus decemsatus – type locality for species
- †Eugnamptus grandaevus
- †Euhapsis
- †Eumys
- †Euparius
- †Euparius elusus – type locality for species
- †Euparius repertus – type locality for species
- Euphagus
- †Euproteaciphyllum
- †Eusmilus
- Eutamias
- †Eutypomys
- †Exostinus
- †Exostinus lancensis – or unidentified comparable form
F
[edit]- Fagus
- Falco
- †Falco columbarius
- †Falco falconella – type locality for species
- †Falco mexicanus
- †Falco rusticolus
- †Falco sparverius
- †Ficarasites – type locality for genus
- †Ficarasites stigmaticum – type locality for species
- Ficus
- †Ficus affinis
- †Ficus artocarpoides
- †Ficus asiminaefolia
- †Ficus deformata
- †Ficus densifolia
- †Ficus haguei
- †Ficus planicostata
- †Ficus shastensis – tentative report
- †Ficus subtruncata
- †Ficus tiliaefolia – tentative report
- †Ficus ungeri
- †Firmianites – type locality for genus
- †Firmianites aterrimus – type locality for species
- †Florentiamys
- †Florentiamys kinseyi – type locality for species
- †Florentiamys loomisi – type locality for species
- †Fluvioviridavis – type locality for genus
- †Fluvioviridavis platyrhamphus – type locality for species
- †Foekenia
- †Fortuna
- †Fortuna marsilioides – or unidentified comparable form
- †Franimys
- †Franimys ambos
- †Franimys amherstensis – type locality for species
- †Franimys buccatus
- †Fraxinoipollenis
- †Fraxinoipollenites
- †Fraxinopollenites
- †Fraxinus
- †Fulgora
- †Fulgora granulosa – type locality for species
- †Fulgora populata – type locality for species
G
[edit]- †Gagadon
- †Galbreathia
- †Galecyon
- Galerita
- †Galerita marshii – type locality for species
- †Gallinuloides – type locality for genus
- †Gallinuloides wyomingensis – type locality for species
- Gastrocopta
- Gastrodonta
- †Gaultia – type locality for genus
- †Gaultia silvaticus – type locality for species
- †Gazinius
- †Gazinius amplus
- †Gazinius bowni – type locality for species
- †Gazinocyon
- †Gelastops
- †Gelastops joni – type locality for species
- †Gelastops parcus
- †Geranoides – type locality for genus
- †Geranoides jepseni – type locality for species
- †Geringophis
- Gerrhonotus – or unidentified comparable form
- Ginkgo
- †Gleditsia – or unidentified related form
- †Gleditsia RR29 informal
- †Gleicheniidites
- †Glypta
- †Glypta transversalis – type locality for species
- †Glyptosaurus – type locality for genus
- †Glyptosaurus agmodon – type locality for species
- †Glyptosaurus obtusidens – type locality for species
- †Glyptosaurus rhodinos – type locality for species
- †Glyptosaurus sphenodon – type locality for species
- †Glyptosaurus sylvestris – type locality for species
- Glyptostrobus
- †Goinophis – tentative report
- †Gomphochelys – type locality for genus
- †Gomphochelys nanus – type locality for species
- †Goniacodon
- †Goniacodon levisanus – type locality for species
- †Goniodontomys
- Gopherus
- †Gracilocyon
- †Grangerella
- †Gregorymys
- †Gregorymys formosus
- †Gregorymys riggsi – type locality for species
- †Grewiopsis – tentative report
- †Griphomys
- Grus
- †Grus canadensis
- †Grus marshi – type locality for species
- Gulo
- †Gymnetron
- †Gymnetron lecontei – type locality for species
- †Gymnocladus
- Gyraulus – or unidentified comparable form
H
[edit]- †Habrosaurus
- †Hadrianus
- †Hadrianus allabiatus – type locality for species
- †Hadrianus quadratus – type locality for species
- †Hammapteryx – type locality for genus
- †Hammapteryx reticulata – type locality for species
- †Hapalodectes
- †Hapalorestes
- †Hapalorestes lovei – type locality for species
- †Haplaletes
- †Haplaletes disceptatrix
- †Haplaletes pelicatus – type locality for species
- †Haploconus
- †Haplodontosaurus
- †Haplolambda
- †Haplomylus
- †Haplomylus bozemanensis – type locality for species
- †Haplomylus palustris
- †Haplomylus scottianus – type locality for species
- †Haplomylus simpsoni
- †Haplomylus speirianus
- †Haplomylus zalmouti
- †Harpagolestes
- †Harpagolestes macrocephalus – type locality for species
- †Harpalodon
- †Harpalodon sylvestris – or unidentified comparable form
- †Harrymys
- †Helaletes – type locality for genus
- †Helaletes nanus – type locality for species
- †Heliscomys
- †Heliscomys hatcheri
- †Heliscomys mcgrewi
- †Heliscomys ostranderi
- †Heliscomys vetus – or unidentified comparable form
- †Helix
- †Helodermoides
- †Helohyus
- †Helohyus lentus
- †Helohyus milleri – type locality for species
- †Helohyus plicodon – type locality for species
- †Hemiacodon
- †Hemiacodon casamissus – type locality for species
- †Hemiacodon engardae – type locality for species
- †Hemiacodon gracilis
- †Hemiauchenia
- †Hemipsalodon
- Hemitelia
- †Hemithlaeus
- †Hendryomeryx
- †Heptacodon
- †Heptodon
- †Herpetotherium
- †Herpetotherium innominatum – type locality for species
- †Herpetotherium knighti
- †Herpetotherium youngi – or unidentified comparable form
- †Hesperocyon
- †Hesperopetes
- †Hesperopetes thoringtoni – type locality for species
- †Hesperosorex
- †Hesperosorex lovei – type locality for species
- †Heteraletes
- †Hexacodus
- †Hicoria
- Hirundo – or unidentified comparable form
- †Holospira
- †Homacodon
- †Homacodon vagans – type locality for species
- †Homalota
- †Homalota recisa – type locality for species
- †Homogalax
- †Honrovits – type locality for genus
- †Honrovits tsuwape – type locality for species
- †Hoplophoneus
- †Hovenia
- †Hovenia oregonensis – or unidentified comparable form
- †Huerfanodon
- †Huerfanodon polecatensis – type locality for species
- †Hummelichelys
- †Hummelichelys annae – type locality for species
- †Hummelichelys ellipticus
- †Hummelichelys grangeri – type locality for species
- †Hummelichelys guttatus – type locality for species
- †Hutchemys
- †Hyaenodon
- Hydrangea
- †Hydrangea antica
- †Hydrangea GR537 informal
- Hydrobia – report made of unidentified related form or using admittedly obsolete nomenclature
- Hydrobius
- †Hydrobius confixus – type locality for species
- †Hydrobius decineratus – type locality for species
- †Hydrochus
- †Hydrochus relictus – type locality for species
- †Hydromystria
- †Hylobius
- †Hylobius packardii – type locality for species
- †Hylobius provectus – type locality for species
- †Hyopsodus
- †Hyopsodus aemulor
- †Hyopsodus latidens
- †Hyopsodus lepidus – type locality for species
- †Hyopsodus loomisi
- †Hyopsodus lysitensis
- †Hyopsodus mentalis
- †Hyopsodus minor
- †Hyopsodus minusculus – type locality for species
- †Hyopsodus miticulus
- †Hyopsodus paulus – type locality for species
- †Hyopsodus pauxillus – type locality for species
- †Hyopsodus powellianus
- †Hyopsodus simplex
- †Hyopsodus tonksi – type locality for species
- †Hyopsodus uintensis
- †Hyopsodus walcottianus
- †Hyopsodus wortmani
- †Hypertragulus
- †Hypisodus
- †Hypohippus
- †Hypolagus
- †Hypolagus parviplicatus – or unidentified comparable form
- †Hyporhina
- †Hypsiops
- †Hyrachyus
- †Hyrachyus eximius
- †Hyrachyus modestus – type locality for species
- †Hyracodon
- †Hyracotherium
I
[edit]- †Icaronycteris – type locality for genus
- †Icaronycteris index – type locality for species
- †Ignacius
- †Ignacius clarkforkensis – type locality for species
- †Ignacius fremontensis
- †Ignacius frugivorus
- †Ignacius graybullianus
- †Iguanavus – type locality for genus
- †Iguanavus exilis – type locality for species
- †Indusia
- †Indusia calculosa – type locality for species
- †Insulapollenites
- †Intyrictis
- †Iridodon – type locality for genus
- †Iridodon datzae – type locality for species
- †Ischyromys
- †Isectolophus
- †Isectolophus latidens
- †Isectolophus radinskyi – type locality for species
- †Isoetites
- †Iulus
- †Iulus telluster – type locality for species
J
[edit]- †Jepsenella
- †Jepsibaena
- †Jepsibaena minor – type locality for species
- †Joffrea
- †Joffrea BB20 informal
- †Joffrea FW50 informal
- †Judithemys
- †Judithemys backmani – or unidentified comparable form
- †Juglandicarya
- †Juglandiphyllites
- Juglans
- †Juncitarsus – type locality for genus
- †Juncitarsus gracillimus – type locality for species
- Junco – or unidentified comparable form
- †Junglandaceae
K
[edit]- †Kalmia
- †Kalobatippus
- †Knightia
- †Knightomys
- Koelreuteria
- †Koniaryctes
- †Koniaryctes paulus – type locality for species
- †Kydia – or unidentified related form
- †Kydia FW61 informal
L
[edit]- †Labidolemur
- †Labidolemur kayi
- †Labidolemur major – type locality for species
- †Labidolemur serus
- †Labidolemur soricoides
- Laccobius
- †Laccobius elongatus – type locality for species
- †Laevigatosporites
- †Lagopus
- †Lagopus leucurus – or unidentified comparable form
- †Lambdotherium
- †Lambertocyon
- †Lambertocyon eximius
- †Lambertocyon gingerichi – type locality for species
- Lanius
- Larus – or unidentified comparable form
- †Lastrea
- Lathrobium
- †Lathrobium abscessum – type locality for species
- †Laurinoxylon
- †Laurophyllum
- Laurus
- †Laurus californica
- †Laurus grandis
- †Laurus montana
- †Laurus perdita
- †Laurus primigenia – tentative report
- †Laurus princeps
- †Laurus socialis
- †Leguminosites
- †Leguminosites coloradensis
- †Leguminosites lamarensis
- †Leguminosites lesquereuxiana
- †Leguminosites regularis – type locality for species
- Leiocephalus
- †Leipsanolestes
- Lepisosteus
- †Lepisosteus glaber – or unidentified comparable form
- †Lepisosteus occidentalis
- †Leptacodon
- †Leptacodon donkroni
- †Leptacodon munusculum
- †Leptacodon packi – type locality for species
- †Leptacodon tener
- †Leptarctus – or unidentified comparable form
- †Leptauchenia
- †Leptictis
- †Leptocyon
- †Leptolambda
- †Leptomeryx
- †Leptomeryx esulcatus
- †Leptomeryx evansi
- †Leptomeryx mammifer
- †Leptomeryx semicinctus
- †Leptomeryx speciosus
- †Leptomeryx yoderi – type locality for species
- †Leptoreodon
- †Leptotomus
- †Leptotomus guildayi
- †Leptotomus parvus – type locality for species
- †Leptotragulus
- †Leptotragulus clarki – or unidentified comparable form
- †Leptotragulus medius
- †Leptotragulus ultimus
- Lepus
- Lepyrus – tentative report
- †Lepyrus evictus – type locality for species
- †Lestophis
- †Lestophis anceps – type locality for species
- †Lestophis crassus – type locality for species
- †Leucosticte
- †Limaconyssus – type locality for genus
- †Limaconyssus habrus – type locality for species
- †Limalophus
- †Limalophus compositus
- †Limalophus contractus – type locality for species
- †Limnocyon
- †Limnocyon cuspidens – type locality for species
- †Limnocyon medius
- †Limnocyon potens – type locality for species
- †Limnocyon velox – type locality for species
- †Limnocyon verus – type locality for species
- †Limnoecus
- †Limnofregata – type locality for genus
- †Limnofregata azygosternon – type locality for species
- †Limnofregata hutchisoni – type locality for species
- Lindera
- †Lindera obtusata
- †Lindera varifolia – type locality for species
- †Lisserpeton
- †Listronotus
- †Listronotus muratus – type locality for species
- †Litaletes
- †Lithexorista – type locality for genus
- †Lithexorista scudderi – type locality for species
- †Lithohypoderma
- †Lithohypoderma ascarides - type locality for species
- †Lithophis – type locality for genus
- †Lithophis sargenti – type locality for species
- †Lithophysa – type locality for genus
- †Lithophysa tumulta – type locality for species
- †Lithopsis – type locality for genus
- †Lithopsis elongata – type locality for species
- †Lithopsis fimbriata – type locality for species
- †Lithornis
- †Lithornis plebius – type locality for species
- †Lithornis promiscuus – type locality for species
- †Lithotorus – type locality for genus
- †Lithotorus cressoni – type locality for species
- †Litocherus
- †Litocherus lacunatus – type locality for species
- †Litocherus notissimus
- †Litocherus zygeus – type locality for species
- †Litolagus
- †Litolestes
- †Litolestes ignotus – type locality for species
- †Litomylus
- †Litomylus dissentaneus – type locality for species
- †Litomylus ishami – type locality for species
- †Litomylus scaphicus – type locality for species
- †Litoyoderimys
- †Lophiotherium
- †Lophiotherium vasacciensis – type locality for species
- †Lophiparamys
- †Lophocion[4]
- †Lophocion grangeri – type locality for species[4]
- †Loveina – type locality for genus
- †Loveina minuta
- †Loveina sheai
- †Loveina wapitiensis
- †Loveina zephyri – type locality for species
- †Loxolophus
- †Loxolophus criswelli
- †Loxolophus faulkneri – type locality for species
- †Loxolophus hyattianus – or unidentified comparable form
- †Loxolophus priscus
- †Lucashyus – type locality for genus
- †Lucashyus coombsae – type locality for species
- †Lyctocoris – tentative report
- †Lyctocoris terreus – type locality for species
- Lygodium
- Lynx
- †Lynx lynx – tentative report
- †Lystra – tentative report
- †Lystra leei – type locality for species
- †Lystra richardsoni – type locality for species
M
[edit]- †Maceopolipollenites
- †Macginitiea
- †Machaeroides
- †Machaeroides eothen
- †Machaeroides simpsoni – type locality for species
- †Machaerosaurus
- Macrocranion
- †Macrocranion junnei – type locality for species
- †Macrocranion nitens
- †Macrocranion robinsoni
- †Macrotarsius
- †Macrotarsius siegerti – type locality for species
- Magnolia
- †Maiorana
- †Maiorana ferrisensis – type locality for species
- †Maiorana noctiluca
- †Malapoenna
- †Malaquiferus
- †Malaquiferus tourteloti – type locality for species
- †Malfelis – type locality for genus
- †Malfelis badwaterensis – type locality for species
- †Mammacyon
- †Mammacyon ferocior – type locality for species
- †Mammuthus
- Marmota
- †Marsholestes
- †Marsholestes dasypelix – type locality for species
- †Mattimys
- †Megacerops
- †Megacerops osborni – type locality for species
- †Megadelphus
- †Megalagus
- †Megalesthonyx
- †Megalictis
- †Melanosaurus – type locality for genus
- †Melanosaurus maximus – type locality for species
- †Melastomites
- †Meliakrouniomys
- †Meliosma
- †Meniscotherium
- †Menisperimites
- †Menispermites
- †Menispermites limacioides – type locality for species
- †Menispermites parvareolatus
- †Menoceras
- †Menops
- †Menops heloceras
- †Menops marshi – or unidentified comparable form
- †Mentoclaenodon
- †Mentoclaenodon acrogenius – type locality for species
- Mergus
- †Merychippus
- †Merychippus coloradense
- †Merychippus insignis – or unidentified comparable form
- †Merychippus primus
- †Merychyus
- †Merychyus arenarum
- †Merychyus crabilli
- †Merychyus elegans – or unidentified comparable form
- †Merychyus minimus
- †Merycobunodon – tentative report
- †Merycobunodon walshi – type locality for species
- †Merycochoerus
- †Merycodus
- †Merycodus sabulonis – or unidentified comparable form
- †Merycodus warreni – or unidentified comparable form
- †Merycoides
- †Merycoidodon
- †Merycoidodon culbertsoni – type locality for species
- †Merycoidodon major
- †Merycoidodon presidioensis – or unidentified comparable form
- †Mesatirhinus
- †Mesocyon – report made of unidentified related form or using admittedly obsolete nomenclature
- †Mesodma
- †Mesodma ambigua – type locality for species
- †Mesodma formosa
- †Mesodma garfieldensis – or unidentified comparable form
- †Mesodma hensleighi
- †Mesodma pygmaea
- †Mesohippus
- †Mesohippus bairdi
- †Mesohippus westoni – or unidentified comparable form
- †Mesomeryx – or unidentified comparable form
- †Mesonyx
- †Mesonyx obtusidens – type locality for species
- †Mesoreodon
- †Mesoreodon chelonyx
- †Mesoreodon minor – type locality for species
- †Mesoscalops
- †Metacheiromys
- †Metacheiromys dasypus – type locality for species
- †Metacheiromys marshi – type locality for species
- †Metadjidaumo
- †Metadjidaumo hendryi – type locality for species
- †Metamynodon
- †Metamynodon planifrons – or unidentified comparable form
- †Metanoiamys
- †Metarhinus
- Metasequoia
- †Metatomarctus
- †Miacis
- †Miacis deutschi
- †Miacis exiguus
- †Miacis latidens
- †Miacis medius
- †Miacis parvivorus – type locality for species
- †Miacis petilus
- †Miacis vorax
- †Michenia
- Micrasema – tentative report
- †Micrasema tessellatum – type locality for species
- †Microclaenodon
- †Microcosmodon
- †Microcosmodon conus – type locality for species
- †Microcosmodon rosei – type locality for species
- †Micromomys
- †Micromomys antelucanus
- †Micromomys silvercouleei – type locality for species
- †Microparamys
- Microphysula – or unidentified comparable form
- †Micropternodus
- †Microsus
- †Microsus cuspidatus – type locality for species
- †Microsyops
- †Microsyops angustidens – type locality for species
- †Microsyops annectens
- †Microsyops cardiorestes
- †Microsyops elegans – type locality for species
- †Microsyops knightensis
- †Microsyops latidens
- †Microsyops scottianus
- Microtus
- Mictomys
- †Mimatuta
- †Mimatuta makpialutae
- †Mimatuta minuial – type locality for species
- †Mimetodon
- †Mimetodon churchilli – type locality for species
- †Mimetodon silberlingi
- †Mimoperadectes
- †Mimoperadectes houdei – type locality for species
- †Mimoperadectes labrus – type locality for species
- †Mimosites
- †Mimotricentes
- †Mimotricentes fremontensis – type locality for species
- †Miniochoerus
- †Miniochoerus affinis – type locality for species
- †Miniochoerus chadronensis – type locality for species
- †Miniochoerus forsythae
- †Miniochoerus gracilis
- †Minippus
- †Mioclaenus
- †Mioclaenus opisthacus – or unidentified comparable form
- †Mioclaenus turgidus
- †Miocyon
- †Miocyon major – or unidentified comparable form
- †Mioheteromys
- †Miohippus
- †Miolabis
- †Miomustela
- †Mioplosus
- †Miospermophilus
- †Miotapirus
- †Miotapirus harrisonensis – type locality for species
- †Miotylopus
- †Miotylopus gibbi
- †Miotylopus leonardi
- †Miotylopus taylori – type locality for species
- †Miracinonyx
- †Mithrandir
- †Mitostylus
- †Mitostylus seculorum – type locality for species
- †Mixodectes
- Mnemosyne
- †Mnemosyne terrentula – type locality for species
- †Mojavemys
- †Monosaulax
- †Monosaulax curtus – or unidentified comparable form
- †Moropus
- Morus
- †Musophyllum
- Mustela
- Mycetobia – tentative report
- †Mycetobia terricola – type locality for species
- †Mylanodon – type locality for genus
- †Mylanodon rosei – type locality for species
- Myrica
- †Myrmecoboides
- Myrmica
- †Myrtophyllum
- †Mysops
- †Mysops fraternus
- †Mysops minimus – type locality for species
- †Mysops parvus – type locality for species
- †Mytonolagus
- †Mytonolagus petersoni
- †Mytonolagus wyomingensis – type locality for species
- †Mytonomys
N
[edit]- †Namatomys
- †Namatomys erythrus – type locality for species
- †Namatomys lloydi
- †Nannodectes
- †Nannodectes gazini – type locality for species
- †Nannodectes gidleyi
- †Nannodectes intermedius – type locality for species
- †Nannodectes simpsoni – type locality for species
- †Nanodelphys
- †Nanomomys
- †Nanotragulus
- †Nanotragulus loomisi – type locality for species
- †Nanotragulus ordinatus
- †Naocephalus – type locality for genus
- †Naocephalus porrectus – type locality for species
- †Navajovius
- †Neanis
- †Necrocydnus
- †Necrocydnus gosiutensis – type locality for species
- †Necygonus – type locality for genus
- †Necygonus rotundatus – type locality for species
- †Nelumbago
- †Nelumbo
- †Neocathartes
- †Neodiacodexis
- †Neoliotomus
- Neophrontops
- †Neoplagiaulax
- †Neoplagiaulax grangeri – tentative report
- †Neoplagiaulax hunteri
- †Neoplagiaulax jepi – type locality for species
- †Neoplagiaulax mckennai – type locality for species
- †Neoplagiaulax nelsoni
- †Neothanes
- †Neothanes testeus – type locality for species
- Neotoma
- †Neovulpavus
- †Nexuotapirus
- †Niglarodon
- †Niptomomys
- †Niptomomys doreenae
- †Niptomomys favorum – type locality for species
- †Niptomomys thelmae
- †Nonomys
- †Nordenskioldia
- †Nosodendron
- †Nosodendron tritavum – type locality for species
- †Notharctus
- †Notharctus robinsoni – type locality for species
- †Notharctus robustior
- †Notharctus tenebrosus – type locality for species
- †Notharctus venticolus
- †Notogoneus
- †Notomorpha – type locality for genus
- †Notomorpha garmanii – type locality for species
- †Notomorpha gravis – type locality for species
- †Notomorpha testudinea – type locality for species
- †Notoparamys – tentative report
- †Notoparamys blochi – type locality for species
- †Nototamias – or unidentified comparable form
- †Nucifraga
- Numenius
- †Nyctea
- †Nyctitherium
- †Nyctitherium christopheri
- †Nyctitherium gunnelli – type locality for species
- †Nyctitherium serotinum – type locality for species
- †Nyctitherium velox
- †Nyssa
O
[edit]- Ochotona
- Ocotea
- †Ocotea coloradensis
- †Ocotea FW03 informal
- †Odaxosaurus
- †Odaxosaurus jepseni – or unidentified comparable form
- †Odaxosaurus piger
- †Ogmophis
- †Ogmophis microcompactus – or unidentified comparable form
- †Ogmophis voorhiesi
- †Oligodontosaurus – type locality for genus
- †Oligodontosaurus wyomingensis – type locality for species
- †Oligoryctes
- †Oligoscalops – tentative report
- †Oligospermophilus
- †Oligotheriomys
- †Oliveremys
- †Oliveremys uintaensis – type locality for species
- †Omalodiscus
- †Omomys
- Ondatra
- †Onoclea
- †Onychonycteris – type locality for genus
- †Onychonycteris finneyi – type locality for species
- †Oodectes
- †Oodectes herpestoides – type locality for species
- †Oodectes jepseni
- Ophryastes
- †Ophryastes compactus – type locality for species
- †Opisthotriton
- Oreamnos
- †Oreoconus
- †Oreodontoides
- Oreohelix
- †Oreolagus
- †Oreopanax
- †Ormiscus
- †Ormiscus partitus – type locality for species
- †Orohippus
- †Orohippus major – type locality for species
- †Orohippus proteros
- †Orohippus pumilus – type locality for species
- †Orohippus sylvaticus
- †Orthogenysuchus – type locality for genus
- †Orthogenysuchus olseni – type locality for species
- †Osbornodon
- †Osbornodon brachypus – type locality for species
- †Osmanthus
- †Osmunda
- †Osmundacidites
- †Otarocyon
- †Otiorhynchites
- †Otiorhynchites fossilis – type locality for species
- †Otiorhynchites tysoni
- †Otiorhynchus
- †Otiorhynchus dubius – type locality for species
- †Otiorhynchus perditus – type locality for species
- †Ototriton – type locality for genus
- †Ototriton solidus – type locality for species
- †Ourayia
- Ovis
- †Oxyacodon
- †Oxyaena
- †Oxyclaenus
- †Oxydactylus
- †Oxydactylus longipes – or unidentified comparable form
- †Oxydactylus lulli – type locality for species
- †Oxydactylus wyomingensis
- †Oxyprimus
- †Oxyprimus galadrielae – type locality for species
- †Oxyprimus putorius
P
[edit]- †Pachyaena
- Pachycondyla
- †Pachycondyla labandeirai – type locality for species
- †Pachylobius
- †Palaeanodon
- †Palaeanodon ignavus
- †Palaeanodon Ignavus
- †Palaeanodon nievelti
- †Palaeanodon parvulus – tentative report
- †Palaearctonyx
- †Palaearctonyx meadi – type locality for species
- †Palaechthon
- †Palaechthon alticuspis – or unidentified comparable form
- †Palaechthon woodi
- †Palaeictops
- †Palaeocarpinus
- †Palaeocarya
- †Palaeogale
- †Palaeolagus
- †Palaeolagus burkei
- †Palaeolagus haydeni
- †Palaeolagus hypsodus – type locality for species
- †Palaeolagus intermedius
- †Palaeolagus philoi
- †Palaeolagus primus – type locality for species
- †Palaeolagus temnodon
- †Palaeonictis
- †Palaeonictis occidentalis
- †Palaeonictis peloria – type locality for species
- †Palaeonictis wingi – type locality for species
- †Palaeophasianus – type locality for genus
- †Palaeophasianus meleagroides – type locality for species
- †Palaeorallus – type locality for genus
- †Palaeorallus troxelli – type locality for species
- †Palaeoryctes
- †Palaeoryctes cruoris – type locality for species
- †Palaeoryctes puercensis
- †Palaeoryctes punctatus
- †Palaeosinomenium – or unidentified comparable form
- †Palaeosinopa
- †Palaeosinopa didelphoides
- †Palaeosinopa dorri – type locality for species
- †Palaeosinopa incerta – type locality for species
- †Palaeosinopa lacus – type locality for species
- †Palaeosinopa lutreola
- †Palaeosinopa veterrima
- †Palaeosyops
- †Palaeosyops fontinalis
- †Palaeosyops paludosus – type locality for species
- †Palaeosyops robustus – type locality for species
- †Palaeotheca
- †Palaeotheca terrestris – type locality for species
- †Palaeoxantusia – type locality for genus
- †Palaeoxantusia amara – type locality for species
- †Palaeoxantusia fera – type locality for species
- †Palatobaena – type locality for genus
- †Palatobaena bairdi – type locality for species
- †Palatobaena gaffneyi – type locality for species
- †Palecphora
- †Palecphora patefacta – type locality for species
- †Palenochtha
- †Palenochtha minor
- †Palenochtha weissae – type locality for species
- †Paleoamphiuma – type locality for genus
- †Paleoamphiuma tetradactylum – type locality for species
- †Paleomyrtinaea
- †Paleomyrtinaea FW66 informal
- †Paleonelumbo
- †Paleonuphar
- †Paleotomus
- †Paleotomus carbonensis – type locality for species
- †Paleotomus milleri – type locality for species
- †Paleotomus radagasti
- †Palepidophyma – type locality for genus
- †Palepidophyma lilliputiana – type locality for species
- †Palepidophyma paradisa – type locality for species
- Paliurus
- †Palmocarpon
- †Pandaniidites
- Panthera
- †Pantolambda
- †Pantolambda cavirictus
- †Pantolambda intermedius – or unidentified comparable form
- †Pantolestes
- †Pantolestes longieundus – type locality for species
- †Pantolestes natans – or unidentified comparable form
- †Paracathartes
- †Paracosoryx
- †Paracynarctus
- †Paradjidaumo
- †Paraenhydrocyon
- †Paraepicrates
- †Paraepicrates brevispondylus – type locality for species
- †Paraglyptosaurus
- †Paraglyptosaurus princeps – type locality for species
- †Parahippus
- †Parahippus pawniensis
- †Parahippus pristinus – tentative report
- †Parahippus wyomingensis – type locality for species
- †Paralatindia
- †Paralatindia saussurei – type locality for species
- †Paramerychyus
- †Paramys
- †Paramys adamus – type locality for species
- †Paramys compressidens
- †Paramys copei
- †Paramys delicatior
- †Paramys delicatus
- †Paramys excavatus
- †Paramys leptodus
- †Paramys pycnus
- †Paramys relictus
- †Paramys taurus
- †Parandrita
- †Parandrita vestita – type locality for species
- †Paranolis – type locality for genus
- †Paranolis delicatus – type locality for species
- †Paranymphaea
- †Paranymphea
- †Parapliosaccomys
- †Paraprionosaurus – type locality for genus
- †Paraprionosaurus wyomingensis – type locality for species
- †Parapternodus
- †Parapternodus antiquus – type locality for species
- †Pararyctes
- †Pararyctes pattersoni – type locality for species
- †Parasauromalus – type locality for genus
- †Parasauromalus olseni – type locality for species
- †Paraternstroemia
- †Paratomarctus
- †Paratylopus
- †Parectypodus
- †Pareumys
- †Parictis
- †Paromomys
- †Parophisaurus
- †Parvericius
- †Parvileguminophyllum
- †Parvitragulus
- †Patriofelis
- †Patriofelis ferox – type locality for species
- †Patriofelis ulta
- †Patriomanis
- †Pauromys
- †Pauromys schaubi – type locality for species
- †Peltosaurus
- †Pelycodus
- †Pelycomys
- †Penetrigonias
- †Penosphyllum
- †Pentacemylus – tentative report
- †Pentacodon
- †Pentacosmodon
- †Pentacosmodon pronus – type locality for species
- †Peradectes
- †Peradectes californicus
- †Peradectes chesteri
- †Peradectes elegans – type locality for species
- †Peradectes protinnaminatus
- †Peradectes protinnominatus
- †Peratherium
- †Perchoerus
- †Periptychus
- Perognathus
- Peromyscus
- Persea
- †Persea brossiana
- †Persea coriacea – type locality for species
- †Persea pseudocarolinensis
- †Perseoxylon
- †Persites
- †Petauristodon
- †Phalaenoptilus
- †Phareodus
- †Phenacocoelus
- †Phenacodaptes
- †Phenacodaptes sabulosus – type locality for species
- †Phenacodontid
- †Phenacodus
- †Phenacodus bisonensis – type locality for species
- †Phenacodus grangeri
- †Phenacodus intermedius
- †Phenacodus magnus
- †Phenacodus matthewi
- †Phenacodus trilobatus
- †Phenacodus vortmani
- †Phenacolemur
- †Phenacolemur fortior – type locality for species
- †Phenacolemur mcgrewi – type locality for species
- †Phenacolemur praecox
- †Phenacolemur shifrae
- †Phenacolemur simonsi
- Phenacomys
- †Phenolia
- †Phenolia incapax – type locality for species
- Philhydrus
- †Philodendron – or unidentified related form
- †Philodendron RR61 informal
- †Philotrox
- †Phlaocyon
- †Phoebe
- Phragmites – tentative report
- †Phyllites
- Phyllobius
- Physa
- Phytocrene
- Pica
- †Piceoerpeton – type locality for genus
- †Piceoerpeton willwoodense – type locality for species
- †Picrodus
- †Picromomys
- †Picromomys petersonorum – type locality for species
- Pinus
- †Pipestoneomys
- †Pipestoneomys bisulcatus – or unidentified comparable form
- Pipilo
- †Plagioctenodon
- †Plagioctenodon krausae
- †Plagioctenodon rosei
- †Plagioctenodon savagei
- †Plagioctenodon thewisseni – type locality for species
- †Plagioctenoides
- †Plagiomene
- †Planatus
- †Planera
- †Planetetherium
- †Planetochelys
- †Planorbina
- †Plastomenoides
- †Plastomenus
- †Plastomenus molopinus
- †Plastomenus oedemius – type locality for species
- †Plastomenus tantillus – type locality for species
- †Plastomenus thomasi
- †Plastomenus visendus – type locality for species
- †Plataninium
- †Platanophyllum
- Platanus
- Platycarya
- Platynus
- †Platynus caesus – type locality for species
- †Platynus senex – type locality for species
- Plecia
- †Plecia dejecta – type locality for species
- †Plecia pealei – type locality for species
- †Plesiadapis
- †Plesiadapis anceps – type locality for species
- †Plesiadapis churchilli
- †Plesiadapis cookei
- †Plesiadapis dubius
- †Plesiadapis fodinatus – type locality for species
- †Plesiadapis gingerichi
- †Plesiadapis praecursor
- †Plesiadapis rex
- †Plesiadapis simonsi – type locality for species
- †Plesiolestes
- †Plesiolestes problematicus – type locality for species
- †Pliophenacomys
- †Poabromylus
- †Poebrodon
- †Poebrotherium
- †Poliomyia – type locality for genus
- †Poliomyia recta – type locality for species
- †Pollyosbornia
- †Pollyosbornia altidens – or unidentified comparable form
- Polygyra
- †Pontifactor
- †Pontifactor bestiola – type locality for species
- Populus
- Porzana
- †Potamogeton
- †Premnoides
- †Presbyornis
- †Primobucco
- †Princetonia
- †Priscacara
- †Priscachara
- †Pristichampsus
- †Probathyopsis
- †Problastomeryx
- †Problastomeryx primus – type locality for species
- †Procaimanoidea
- †Procaimanoidea kayi – type locality for species
- †Procamelus
- †Procerberus
- †Procerberus formicarum – or unidentified comparable form
- †Procerberus grandis – or unidentified comparable form
- †Prochetodon
- †Prochetodon cavus – type locality for species
- †Prochetodon foxi
- †Prochetodon taxus – type locality for species
- †Procydnus – tentative report
- †Procydnus mamillanus – type locality for species
- †Procynodictis
- †Prodiacodon
- †Prodiacodon concordiarcensis – type locality for species
- †Prodiacodon furor – or unidentified comparable form
- †Prodiacodon puercensis – or unidentified comparable form
- †Prodiacodon tauricinerei
- †Proharrymys
- †Prolimnocyon
- †Prolimnocyon antiguus
- †Prolimnocyon antiquus
- †Prolimnocyon atavus
- †Prolimnocyon eerius
- †Prolimnocyon haematus – type locality for species
- †Promartes
- †Promerycochoerus
- †Promioclaenus
- †Promioclaenus acolytus
- †Promioclaenus pipiringosi – type locality for species
- †Pronemobius
- †Pronemobius induratus – type locality for species
- †Pronemobius tertiarius – type locality for species
- †Pronothodectes
- †Pronothodectes jepi – type locality for species
- †Propalaeanodon – type locality for genus
- †Propalaeanodon schaffi – type locality for species
- †Proscalops
- †Proscalops miocaenus
- †Proscalops secundus – or unidentified comparable form
- †Prosciurus
- †Protadjidaumo – tentative report
- †Protagras – type locality for genus
- †Protagras lacustris – type locality for species
- †Protamphipteryx – type locality for genus
- †Protamphipteryx basalis – type locality for species
- †Prothryptacodon
- †Prothryptacodon furens
- †Prothryptacodon hilli – type locality for species
- †Protictis
- †Protictis agastor – type locality for species
- †Protictis aprophatos
- †Protictis haydenianus
- †Protictis microlestes
- †Protictis paralus
- †Protoboysia
- †Protoceras
- †Protoceras neatodelpha – type locality for species
- †Protochelydra
- †Protochelydra zangerli – or unidentified comparable form
- †Protochriacus
- †Protochriacus simplex – or unidentified comparable form
- †Protohippus
- †Protohippus perditus – or unidentified comparable form
- †Protolabis
- †Protolabis heterodontus – or unidentified comparable form
- †Protomarctus
- †Protopsalis
- †Protoptychus
- †Protoreodon
- †Protoreodon parvus – or unidentified comparable form
- †Protoreodon petersoni – or unidentified comparable form
- †Protoreodon pumilus
- †Protorohippus
- †Protoselene – tentative report
- †Protoselene novissimus – type locality for species
- †Protospermophilus
- †Protostrix
- †Protostrix leptosteus
- †Protostrix saurodosis – type locality for species
- †Prototomus
- †Prototomus deimos – type locality for species
- †Prototomus martis – type locality for species
- †Prototomus phobos
- †Prototomus robustus
- †Prototomus secundarius
- †Protungulatum
- †Protylopus
- †Provaranosaurus – type locality for genus
- †Provaranosaurus acutus – type locality for species
- †Provaranosaurus fatuus – type locality for species
- †Proviverroides
- †Proxestops
- †Proxestops silberlingii – type locality for species
- Prunus
- †Pseudaelurus
- †Pseudhipparion
- †Pseudoblastomeryx
- †Pseudocemophora
- †Pseudocemophora antiqua – or unidentified comparable form
- †Pseudocrypturus – type locality for genus
- †Pseudocrypturus cercanaxius – type locality for species
- †Pseudocylindrodon
- †Pseudodesmatochoerus – type locality for genus
- †Pseudodesmatochoerus hoffmani – type locality for species
- †Pseudolabis
- †Pseudopalaeocastor
- †Pseudoprotoceras
- †Pseudoprotoceras longinaris
- †Pseudoprotoceras minor – type locality for species
- †Pseudoprotoceras taylori
- †Pseudotetonius
- †Pseudotheridomys
- †Pseudotheridomys pagei – or unidentified comparable form
- †Pseudotomus
- †Pseudotomus hians – type locality for species
- †Pseudotomus horribilis – type locality for species
- †Pseudotomus robustus – type locality for species
- †Psilosemys – type locality for genus
- †Psilosemys wyomingensis – type locality for species
- †Psilota
- †Psilota tabidosa – type locality for species
- †Psittacotherium
- Ptelea
- Pteris – or unidentified related form
- Pterocarya
- †Pteromogoplistes
- †Pteromogoplistes smithii – type locality for species
- †Pterospermites
- †Ptilodus
- †Ptilodus fractus
- †Ptilodus gnomus
- †Ptilodus kummae
- †Ptilodus mediaevus
- †Ptilodus montanus – or unidentified comparable form
- †Ptilodus tsosiensis – or unidentified comparable form
- †Ptilodus wyomingensis – type locality for species
- †Pulverflumen
- †Pulverflumen magnificum – type locality for species
- Puma
- Pupilla – or unidentified comparable form
- †Pyramidula
- †Pyrocyon
Q
[edit]- †Quadratomus
- †Quercinium
- Quercus
- †Quercus consimilis – tentative report
- †Quercus culveri
- †Quercus cuneatus – type locality for species
- †Quercus drymeja
- †Quercus furcinervis
- †Quercus GR522 informal
- †Quercus GR575 informal
- †Quercus greenlandica
- †Quercus grosidentata
- †Quercus hesperia
- †Quercus magnifolia
- †Quercus olafseni
- †Quercus petros – type locality for species
- †Quercus sullyi
- †Quercus weedii
- †Quercus yanceyi
- †Quereuxia
- Quiscalus – or unidentified comparable form
R
[edit]- †Ramoceros
- †Rapamys
- †Raphictis
- †Raphictis gausion – type locality for species
- †Reithroparamyine
- †Reithroparamys
- †Reithroparamys delicatissimus – type locality for species
- †Reithroparamys huerfanensis
- †Restes – type locality for genus
- †Restes rugosus – type locality for species
- †Reticuloidosporites
- †Rhamnacinium
- †Rhamnus
- Rhineura – type locality for genus
- †Rhineura hatcherii – type locality for species
- Rhinoclemmys – report made of unidentified related form or using admittedly obsolete nomenclature
- Rhus
- †Rhus mixta – tentative report
- †Rhus nigricans
- †Rhyssa
- †Rhyssa juvenis – type locality for species
- †Robinia
- Rosa
- †Rymosia
- †Rymosia strangulata – type locality for species
S
[edit]- Sabal
- †Sabalitesamesoneuron
- †Sabalitesamesoneuron RR34 informal
- †Saccoloma
- †Sackenia
- †Sackenia gibbosa – type locality for species
- †Salilx
- Salix
- †Salix angusta
- †Salix aquilina
- †Salix cockerelli
- †Salix elongata – tentative report
- †Salix lavateri
- †Salix varians
- †Salpinctes – or unidentified comparable form
- †Salvinia
- †Sanctimus
- †Sanctimus simonisi – type locality for species
- †Sanctimus stouti – type locality for species
- †Sanctimus stuartae
- †Saniwa – type locality for genus
- †Saniwa ensidens – type locality for species
- †Saniwa major – type locality for species
- †Saniwa stenodon
- †Sapindaceous
- †Sapindus
- Sassafras
- †Scalopoides
- †Scapherpeton
- †Scenopagus
- †Scenopagus curtidens
- †Scenopagus edenensis
- †Scenopagus hewettensis – type locality for species
- †Scenopagus priscus
- †Schaubeumys
- †Schizodontomys
- †Schoepfia
- Sciara
- †Sciara scopuli – type locality for species
- †Scincoideus
- †Scincoideus grassator – type locality for species
- Sciomyza – tentative report
- †Sciomyza disjecta – type locality for species
- †Sciomyza manca – type locality for species
- †Sciophila
- †Sciophila hyatti – type locality for species
- †Sciuravus
- †Sciuravus bridgeri – type locality for species
- †Sciuravus nitidus – type locality for species
- †Sciuravus popi – or unidentified comparable form
- †Sciuravus wilsoni
- †Scottimus
- †Scottimus ambiguus – or unidentified comparable form
- †Scottimus kellamorum – type locality for species
- †Scottimus viduus
- †Selenaletes
- Sequoia
- †Sespia
- †Shoshonius
- †Sialia
- †Sifrhippus
- †Sigynorum – type locality for genus
- †Sigynorum magnadivisus – type locality for species
- †Simoedosaurus
- †Simpsonictis
- †Simpsonictis jaynanneae – type locality for species
- †Simpsonictis pegus – type locality for species
- †Simpsonictis tenuis
- †Simpsonlemur
- †Simpsonlemur citatus
- †Simpsonlemur jepseni – or unidentified comparable form
- †Sinclairella
- †Sinomenium – or unidentified related form
- †Sinomenium RR08 informal
- †Sinopa
- †Sinopa agilis – type locality for species
- †Sinopa major – type locality for species
- †Sinopa minor
- †Sinopa rapax – type locality for species
- †Sinopa viverrinus
- †Siphonophoroides
- †Siphonophoroides antiqua – tentative report
- Siren
- †Siren dunni – type locality for species
- Sitona
- †Sitona grandaevus – type locality for species
- †Sitona paginarum
- Sloanea – or unidentified related form
- †Sloanea RR18 informal
- †Smilax
- †Smilax GR550 informal
- †Smilax lamarensis
- †Smilodectes
- †Smilodectes gibossus – type locality for species
- †Smilodectes gracilis – type locality for species
- †Smilodectes mcgrewi – type locality for species
- †Smilodectes sororis – type locality for species
- Sorex
- †Sparganium
- †Spathorhynchus – type locality for genus
- †Spathorhynchus fossorium – type locality for species
- †Spathorhynchus natronicus
- Spermophilus
- †Sphacorhysis
- †Sphacorhysis burntforkensis – type locality for species
- †Sphenocoelus
- Spirodela
- †Spiza
- †Spurimus
- Stagnicola
- †Staphylinites
- †Staphylinites obsoletum – type locality for species
- †Stegobium
- †Stegobium defunctus – type locality for species
- †Steinius
- †Steinius annectens – type locality for species
- †Steinius vespertinus
- †Steneofiber
- †Stenocinclis – type locality for genus
- †Stenocinclis anomala – type locality for species
- †Stenogomphus
- †Stenogomphus scudderi – type locality for species
- †Stenomylus
- †Stenopelta
- †Stenopelta punctulata – type locality for species
- Sterculia
- †Stibarus
- †Stillingia
- †Straitopollis
- †Strigorhysis – type locality for genus
- †Strigorhysis bridgerensis – type locality for species
- †Strigorhysis rugosus
- Sturnella
- †Stygimys
- †Stylemys
- †Stylinodon
- †Stylinodon mirus – type locality for species
- †Styrax
- †Subhyracodon
- Surnia
- †Suzanniwana – type locality for genus
- †Suzanniwana patriciana – type locality for species
- †Suzanniwana revenanta – type locality for species
- †Swaindelphys
- †Swaindelphys cifellii – type locality for species
- †Swainiguanoides – type locality for genus
- †Swainiguanoides milleri – type locality for species
- †Swartzia
- †Swartzia wardelii – type locality for species
- Sylvicola – type locality for genus
- †Sylvicola cadaver – type locality for species
- Sylvilagus
- Symplocos
- Synaptomys
- †Syncolporites
- †Syndyoceras
- †Syntomostylus
- †Syntomostylus fortis – type locality for species
- Syrphus
- †Systemodon
- †Syzygioides
T
[edit]- Tachycineta – or unidentified comparable form
- †Taeniolabis
- †Talpavoides
- †Talpavoides dartoni – type locality for species
- †Talpavus
- †Talpavus duplus
- †Talpavus nitidus
- †Talpavus sullivani – type locality for species
- Tamias
- †Tamias ateles – or unidentified comparable form
- †Tanymykter
- †Tapocyon
- †Tapocyon robustus – or unidentified comparable form
- †Tarka
- †Tatmanius – type locality for genus
- †Tatmanius szalayi – type locality for species
- Taxidea
- †Taxites
- Taxodium
- †Taxonus
- †Taxonus nortoni – type locality for species
- †Taxymys
- †Teilhardina
- †Teilhardina americana – type locality for species. Late reclassified in the new genus Bownomomys as the species B. americanus.[2]
- †Teilhardina brandti – type locality for species
- †Teilhardina crassidens – type locality for species. Later reclassified as Bownomomys crassidens.[2]
- †Teilhardina demissa – type locality for species
- †Teilhardina gingerichi
- †Teilhardina mathewi
- †Teilhardina tenuicula
- †Teleoceras
- †Telmatherium
- †Telmatherium validum – or unidentified comparable form
- †Telmatherium validus – type locality for species
- †Telmatrechus
- †Telmatrechus parallelus – type locality for species
- †Temnocyon
- †Temnocyon macrogenys – type locality for species
- †Temnotrionyx – type locality for genus
- †Temnotrionyx manducans – type locality for species
- †Teretrum
- †Teretrum quiescitum – type locality for species
- †Ternstroemites
- †Tetigonia
- †Tetigonia priscomarginata – type locality for species
- †Tetigonia priscovariegata – type locality for species
- †Tetonius
- †Tetonius matthewi – type locality for species
- †Tetonoides
- †Tetraclaenodon
- †Tetrapassalus
- †Tetrapassalus proius – type locality for species
- †Thamnotettix
- †Thamnotettix gannetti – type locality for species
- †Thamnotettix mutilata – type locality for species
- Thelypteris
- †Thinocyon
- †Thisbemys
- †Thisbemys brevicrista
- †Thisbemys corrugatus – type locality for species
- †Thisbemys perditus
- †Thouinia
- †Thryptacodon
- †Thryptacodon antiquus
- †Thryptacodon australis
- †Thryptacodon barae
- †Thryptacodon orthogonius – type locality for species
- †Thryptacodon pseudarctos
- †Thuites
- †Thuja
- †Thylacaelurus
- †Thylacaelurus montanus – or unidentified comparable form
- †Thylacodon
- Tilia
- †Tillodon
- †Tillodon fodiens – type locality for species
- †Tillomys
- †Tillomys parvidens – type locality for species
- †Tillomys senex
- †Tinimomys
- †Tinimomys graybulliensis
- †Tinimomys loomisi
- †Tinimomys tribos – type locality for species
- Tinosaurus – type locality for genus
- †Tinosaurus pristinus – type locality for species
- †Tinosaurus stenodon – type locality for species
- Tipula
- †Tipula sepulchri – type locality for species
- †Tipula spoliata – type locality for species
- †Titanoides
- †Titanoides gidleyi – type locality for species
- †Titanoides major
- †Titanoides nanus – type locality for species
- †Titanoides primaevus
- †Titanomyrma
- †Titanomyrma lubei – type locality for species
- †Torrejonia
- †Torrejonia sirokyi – type locality for species
- †Toxotherium
- Trapa
- †Tremanotus
- †Triatriopollenites
- †Tricalpites
- †Tricentes
- †Tricolpites
- †Trigenicus
- †Trigonias
- †Trigonorhinus
- †Trigonorhinus pristinus – type locality for species
- Trionyx
- †Trionyx concentricus – type locality for species
- †Trionyx thomasii – type locality for species
- †Triplopus
- †Triplopus cubitalis – type locality for species
- †Triplopus implicatus – type locality for species
- †Triplopus obliquidens – or unidentified comparable form
- †Tritemnodon
- †Tritoma
- †Tritoma binotata – type locality for species
- †Triumfetta
- †Trochodendroides
- †Trogolemur
- †Trogolemur amplior – type locality for species
- †Trogolemur fragilis – type locality for species
- †Trogolemur myodes – type locality for species
- †Trogosus
- †Trogosus castoridens – type locality for species
- †Trogosus gazini – type locality for species
- †Trogosus latidens
- †Tropideres
- †Tropideres remotus – type locality for species
- †Tropisternus
- †Tropisternus saxialis – type locality for species
- †Tropisternus sculptilis – type locality for species
- †Trypodendron
- †Trypodendron impressus – type locality for species
- †Tsoabichi – type locality for genus
- †Tsoabichi greenriverensis – type locality for species
- †Tubulodon
- Turdus – or unidentified comparable form
- †Tuscahomys
- †Tuscahomys ctenodactylops – type locality for species
- †Tuscahomys major – or unidentified comparable form
- †Tuscahomys walshi – type locality for species
- †Tuscahomys worlandensis
- †Tylocephalonyx
- Tympanuchus
- Typha – or unidentified related form
- †Tytthaena
- †Tytthaena lichna
- †Tytthaena parrisi – type locality for species
U
[edit]- †Uintaceras
- †Uintacyon
- †Uintacyon asodes
- †Uintacyon gingerichi
- †Uintacyon jugulans – type locality for species
- †Uintacyon massetericus
- †Uintacyon rudis
- †Uintanius
- †Uintasorex
- †Uintasorex parvulus – type locality for species
- †Uintatherium – type locality for genus
- †Uintatherium anceps – type locality for species
- †Uintornis – type locality for genus
- †Uintornis lucaris – type locality for species
- †Uintornis marionae – type locality for species
- Ulmus
- †Ulmus microphylla
- †Ulmus minima – tentative report
- †Ulmus rhamnifolia
- Unio
- †Unuchinia
- †Unuchinia diaphanes – type locality for species
- †Unuchinia dysmathes
- Ursus
- †Ustatochoerus
- †Utahia
- †Utahia carina – type locality for species
- †Utemylus
- †Utemylus serior – type locality for species
V
[edit]- †Valenia
- †Valenopsalis
- †Vassacyon
- †Vassacyon bowni – type locality for species
- †Vassacyon promicrodon
- †Vauquelinia
- †Viburnum
- †Vinea – or unidentified comparable form
- Vitis
- †Viverravus
- †Viverravus acutus
- †Viverravus acutus/gracilis informal
- †Viverravus browni
- †Viverravus gracilis – type locality for species
- †Viverravus laytoni
- †Viverravus lutosus
- †Viverravus minutus – type locality for species
- †Viverravus politus
- †Viverravus rosei – type locality for species
- †Viverravus sicarius
- Viviparus
- †Vulpavus
- †Vulpavus australis
- †Vulpavus canavus
- †Vulpavus farsonensis – type locality for species
- †Vulpavus hargeri
- †Vulpavus ovatus – type locality for species
- †Vulpavus palustris – type locality for species
- †Vulpavus profectus – type locality for species
- †Vulpavus simplex
- Vulpes
W
[edit]- †Washakius
- †Wickia
- †Wickia brevirhinus – or unidentified comparable form
- †Wilsoneumys
- †Woodwardia
- †Worlandia
- †Worlandia inusitata – type locality for species
- †Wrightohyus
- †Wyolestes
- †Wyolestes apheles
- †Wyolestes dioctes – type locality for species
- †Wyomomys
- †Wyomomys bridgeri – type locality for species
- †Wyomylus – type locality for genus
- †Wyomylus whitei – type locality for species
- †Wyonycteris – type locality for genus
- †Wyonycteris chalix – type locality for species
X
[edit]- †Xanclomys
- †Xanclomys mcgrewi – type locality for species
- †Xenicohippus
- †Xenochelys
- †Xenochelys bridgerensis – type locality for species
- †Xenochelys formosa
- †Xenochelys lostcabinensis – type locality for species
- †Xenocranium
- †Xestops
- †Xestops gracilis – type locality for species
- †Xestops lentus – type locality for species
- †Xestops microdus – type locality for species
- †Xestops minutus – type locality for species
- †Xestops piercei – type locality for species
- †Xestops savagei – type locality for species
- †Xestops vagans – type locality for species
- †Xestops vagrans
- †Xyronomys
- †Xyronomys swainae – type locality for species
Y
[edit]- †Yoderimys – type locality for genus
- †Yoderimys bumpi – type locality for species
- †Yoderimys stewarti
- †Ysengrinia
Z
[edit]- †Zamia
- †Zangerlichelys
- †Zanycteris
- Zelkova
- †Zemiodontomys
- Zenaida
- †Ziamys – or unidentified comparable form
- †Zingiberopsis
- Zizyphus
- †Zodiolestes
- Zonotrichia
References
[edit]- ^ a b Patrick S. Herendeen; Fabiany Herrera (2019). "Eocene fossil legume leaves referable to the extant genus Arcoa (Caesalpinioideae, Leguminosae)". International Journal of Plant Sciences. 180 (3): 220–231. doi:10.1086/701468. S2CID 92041312.
- ^ a b c d e Paul E. Morse; Stephen G.B. Chester; Doug M. Boyer; Thierry Smith; Richard Smith; Paul Gigase; Jonathan I. Bloch (2019). "New fossils, systematics, and biogeography of the oldest known crown primate Teilhardina from the earliest Eocene of Asia, Europe, and North America". Journal of Human Evolution. 128: 103–131. doi:10.1016/j.jhevol.2018.08.005. PMID 30497682. S2CID 54167483.
- ^ a b Daniel T. Ksepka; Lance Grande; Gerald Mayr (2019). "Oldest finch-beaked birds reveal parallel ecological radiations in the earliest evolution of passerines". Current Biology. 29 (4): 657–663.e1. doi:10.1016/j.cub.2018.12.040. PMID 30744971.
- ^ a b Bin Bai; Yuan-Qing Wang; Jin Meng (2019). "A new late Paleocene phenacodontid 'condylarth' Lophocion from the Clark's Fork Basin of Wyoming". Historical Biology: An International Journal of Paleobiology. 33 (5): 1–8. doi:10.1080/08912963.2019.1652283. S2CID 202017719.
- ^ Johnson, Kirk. (2002). Megaflora of the Hell Creek and lower Fort Union Formations in the western Dakotas: Vegetational response to climate change, the Cretaceous-Tertiary boundary event, and rapid marine transgression. 10.1130/0-8137-2361-2.329.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.