Protosuchia

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Protosuchia

fossil reptile suborder

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classification

In crocodile: Annotated classification
†Suborder Protosuchia Upper Triassic; muzzle very short; choanae (internal nostrils) in region of palatine bones. †Suborder Mesosuchia Jurassic to Upper Cretaceous; choanae in posterior part of palatine bones. †Suborder Sebecosuchia Upper Cretaceous to Miocene; skull
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description

In crocodile: Paleontology
…the crocodilian group, namely the Protosuchia of the Late Triassic Epoch (228.7 million–199.6 million years ago); but their muzzles were very short, and the choanae were relatively far forward on the palate.
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