Definition of archosaur
: any of a subclass (Archosauria) of reptiles comprising the dinosaurs, pterosaurs, and crocodilians
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Recent Examples of archosaur from the Web
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This came as a surprise, Stocker says, and indicates that the more complex, crocodile-type ankle shape was ancestral for archosaurs.
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Looking at the diversity of living and extinct archosaurs –
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Snakes and scaly lizards split from the archosaur before turtles and lack the red oil on their retinas.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'archosaur.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of archosaur
New Latin Archosauria, from Greek archōn + sauros lizard
Learn More about archosaur
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See words that rhyme with archosaur Britannica.com: Encyclopedia article about archosaur
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