Ptychotrygon
| Ptychotrygon Temporal range: Cretaceous, 94.3–66 Ma | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Clade: | Pristiorajea |
| Order: | †Sclerorhynchiformes |
| Suborder: | †Sclerorhynchoidei |
| Family: | †Ptychotrygonidae |
| Genus: | †Ptychotrygon |
Ptychotrygon is a genus of sawfish-like Cretaceous ray whose fossils have been found worldwide.[1] It is the only genus in the family Ptychotrygonidae.[2]
References
- ↑ "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 2016-04-11.
- ↑ "Fossilworks: Ptychotrygonidae". fossilworks.org. Retrieved 2016-04-11.
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