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Pristiorajea

Pristiorajea
Temporal range: Albian–Recent
Sclerorhynchus.jpg
Sclerorhynchus, a sclerorhynchiform
Sawfish genova2.jpg
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. They have lived since the Middle Cretaceous period, with the earliest known member of this family being Onchopristis from the Albian period.



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Wikipedia

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