Pristiorajea
| Pristiorajea Temporal range: Albian–Recent | |
|---|---|
 | |
| Sclerorhynchus, a sclerorhynchiform | |
 | |
| Green sawfish, a pristiform | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Superorder: | Batoidea |
| Clade: | Pristiorajea |
| Orders | |
Pristiorajea is a clade of rays containing the Sclerorhynchiformes and the Pristiformes. Members of this clade can be identified by their long, serrated rostrums; however, they are not to be mistaken with the unrelated but very similar-looking sawsharks.[1] They have lived since the Middle Cretaceous period, with the earliest known member of this family being Onchopristis from the Albian period.
References
- ↑ Jürgen Kriwet (2004). "The systematic position of the Cretaceous sclerorhynchid sawfishes (Elasmobranchii, Pristiorajea)" (PDF). In G. Arratia & A. Tintori. Systematics, Paleoenvironments and Biodiversity. Mesozoic Fishes. 3. Munich: Friedrich Pfeil. pp. 57–73. ISBN 3-89937-053-8.
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