Pristiorajea is a defunct clade of chondrichthyans containing the sawsharks (Pristiophoriformes) and rays (order Batoidea). It is sister to the Squatiniformes and shares a common ancestry with the Squaliformes. However, phylogenetic evidence supports rays and sharks as being monophyletic groupings and distinct from one another.
References
- Kriwet, Jürgen (2004). "The systematic position of the Cretaceous sclerorhynchid sawfishes (Elasmobranchii, Pristiorajea)". Mesozoic Fishes 3: Systematics, Paleoenvironment and Biodiversity.
- Watson, Joshua (2019-10-13). "Infraclass Euselachii sharks and rays and related fossils - Fishes". gibell Aquarium Society. Retrieved 2020-10-18.
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