Archosaur
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Archosauria or archosaurs is a clade of diapsid sauropsid tetrapods, with birds and crocodilians being the only known extant representatives. Although broadly classified as reptiles, which traditional
Crocodile Front Egret Kabini Nagarhole Apr 22 D72 23712
Examples of pseudosuchians. Clockwise from top-left: Longosuchus meadei (an aetosaur), Gavialis gangeticus (a crocodilian), Saurosuchus galilei (a loricatan), Pedeticosaurus leviseuri (a sphenosuchian), Chenanisuchus lateroculi (a dyrosaurid), and Dakosaurus maximus (a thalattosuchian).
Examples of avemetatarsalians. Clockwise from top-left: Tupuxuara leonardi (a pterosaur), Alamosaurus sanjuanensis, (a sauropod), Tsintaosaurus spinorhinus (an ornithopod), Daspletosaurus torosus (a tyrannosaurid), Pentaceratops sternbergii (a ceratopsian), and Grus grus (a neornithian).
Chirotherium footprint in Triassic sediments
Pseudosuchia
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Pseudosuchia is one of two major divisions of Archosauria, including living crocodilians and all archosaurs more closely related to crocodilians than to birds. Pseudosuchians are also informally known
Archosaur
…includes the most recent common ancestor of living birds and crocodilians, and all of its descendants. The base of Archosauria splits into two clades: Pseudosuchia, which includes crocodilians and their extinct relatives; and Avemetatarsalia, which includes birds and their extinct relatives (such as non-avian…
HMNS Paleo Hall Postosuchus and Desmatosuchus
Mounted skeleton of the Triassic loricatan Saurosuchus galilei
Sharovipteryx BW