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Archosauromorpha (Greek for "ruling lizard forms") is a clade of diapsid reptiles containing all reptiles more closely related to archosaurs (such as crocodilians and dinosaurs, including birds) rather than lepidosaurs (such as tuataras, lizards, and snakes). [1]
Archosauriformes (Greek for 'ruling lizards', and Latin for 'form') is a clade of diapsid reptiles encompassing archosaurs and some of their close relatives. It was defined by Jacques Gauthier (1994) as the clade stemming from the last common ancestor of Proterosuchidae and Archosauria. [3]
The pelvic anatomy of Cricosaurus and other metriorhynchids [41] and fossilized embryos belonging to the non-archosaur archosauromorph Dinocephalosaurus, [42] together suggest that the lack of viviparity among archosaurs may be a consequence of lineage-specific restrictions. [clarification needed]
Articles relating to the a clade of diapsid reptiles, containing all reptiles more closely related to archosaurs (such as crocodilians and dinosaurs, including birds) rather than lepidosaurs (such as tuataras, lizards, and snakes).
Archosaurus (meaning "ruling lizard") is an extinct genus of carnivorous proterosuchid archosauriform reptile. [1] Its fossils are dated to the latest Permian of Russia and Poland, it is one of the earliest known archosauriforms.
A clade of diapsid reptiles that developed from archosauromorph ancestors some time in the Late Permian (roughly 250 million years ago).It was defined by Jacques Gauthier (1994) as the clade stemming from the last common ancestor of Proterosuchidae and Archosauria (the group that contains crocodiles, pterosaurs and dinosaurs (including birds); [1] Phil Senter (2005) defined it as the most ...
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Dinocephalosaurus was a very large non-crocopodan archosauromorph, attaining a maximum body length of up to 6 metres (20 ft), [11] compared to a maximum of 5–6 m (16–20 ft) for Tanystropheus. [12] The known specimens were probably mature, given that they have fused skull bones and lack the multi-cusped teeth seen in juvenile Tanystropheus. [3]