| Crossopholis Temporal range:
| |
|---|---|
| |
| Crossopholis magnicaudatus | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Acipenseriformes |
| Family: | Polyodontidae |
| Genus: | †Crossopholis Cope, 1883[1] |
| Type species | |
| Crossopholis magnicaudatus | |
Crossopholis is an extinct fish known from the early Eocene (Ypresian) of North America, approximately 52 million years ago. It is a close relative of the contemporary American paddlefish, belonging to the paddlefish family Polyodontidae.
- ^ Cite error: The named reference
fossilworkswas invoked but never defined (see the help page). - ^ British Museum (Natural History). Dept. of Geology; Arthur Smith Woodward (1895). Catalogue of the Fossil Fishes in the British Museum (Natural History): Actinopterygian Teleostomi of the orders Chondrostei (concluded), Protospondyli, Aetheospondyli, and Isopondyli (in part). order of the Trustees.