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aetosaur
noun
aeto·saur
| \ ā-ˈe-tə-ˌsȯr
\
\
plural aetosaurs
Definition of aetosaur
: any of an order or suborder (Aetosauria) of extinct, chiefly herbivorous, armored reptiles that lived during the late Triassic period and had a long, narrow body, a small head, and a flat, piglike snout
… footprints (actually scrape marks) can also be identified as coming from two other large vertebrates: phytosaurs and aetosaurs, crocodile-like reptiles who lived around the shallow lake.— Jeanne Nicholson Siler, Washington Post, 2 Nov. 1990 Aetosaurs were low-slung animals 1 to 5 metres long with small heads and armoured bodies, built like the ankylosaurs of the dinosaur age or the extinct, car-sized armadillos that died out around 10,000 years ago.— Jeff Hecht, New Scientist, 25 Feb. 2006
Note: Aetosaurs are archosaurs that are closely related to the crocodilians.
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