ankylosaurus

Word Origin & History

ankylosaurus
Cretaceous armored dinosaur, 1908, Mod.L., from Gk. ankylos "crooked" (see angle (n.)) + sauros "lizard."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
ankylosaurus (āng'kə-lō-sôr'əs) or ankylosaur   (āng'kə-lō-sôr'əs)  Pronunciation Key 
A large, herbivorous dinosaur of the genus Ankylosaurus of the Cretaceous Period. Ankylosaurs had a squat, heavily armored body and a clubbed tail.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

ankylosaurus

armoured ornithischian dinosaurs that lived 70 million to 65 million years ago in North America during the Late Cretaceous Period. Ankylosaurus is a genus belonging to a larger group (infraorder Ankylosauria) of related four-legged, herbivorous, heavily armoured dinosaurs that flourished throughout the Cretaceous Period (144 million to 65 million years ago).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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