Chondrosteus

Chondrosteus is an extinct genus of ray-finned fish from the family Chondrosteidae that lived during the Lower Jurassic. It has a single species, C. acipenseroides. It is related to modern-day sturgeons and paddlefish.

Chondrosteus had a robust, shark-like body that was 1 meter long. Bizarrely, the ribs were missing. The basibranchial bone is ossified and the skin was not covered with scales.

• †Chondrosteus crassior Egerton, 1858
• †Chondrosteus pachyurus Egerton, 1858

1. Hilton, Eric J. (2009). "Redescription of Chondrosteus acipenseroides Egerton, 1858 (Acipenseriformes, Chondrosteidae) from the Lower Lias of Lyme Regis (Dorset, England), with comments on the early evolution of sturgeons and paddlefishes". ResearchGate.
2. "Chondrosteus". Paleobiology Database. Retrieved 16 March 2012.

• Data related to Chondrosteus at Wikidata