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ankylosaur

American  
[ang-kuh-loh-sawr] / ˈæŋ kə loʊˌsɔr /

noun

  1. any of several herbivorous dinosaurs of the suborder Ankylosauria, from the Cretaceous Period, having the body covered with thick, bony plates.


ankylosaur British  
/ ˈæŋkɪləʊˌsɔː /

noun

  1. any of various quadrupedal herbivorous ornithischian dinosaurs constituting the suborder Ankylosauria, which were most abundant in upper Cretaceous times and had a very heavily armoured tanklike body

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ankylosaur

First recorded in 1905–10, ankylosaur is from the New Latin word Ankylosauria name of the suborder. See ancylo-, -saur, -ia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Since its initial description in 2001, it has been classified as an ankylosaur, a group known for their tough, armored bodies.

From Science Daily Apr. 21, 2026

Fairy-tale-like, just weeks earlier, local kids had stumbled into a discovery of ankylosaur tracks, so Tumbler Ridge rebranded to take advantage of its grand mountain views and spectacular surroundings.

From The Wall Street Journal Feb. 16, 2026

It was the first ankylosaur to be found on the African continent.

From BBC Aug. 27, 2025

It’s not clear how the structures that the team analyzed would allow an ankylosaur to vary sounds, Dr. Clarke said.

From New York Times Feb. 24, 2023

They included two unique footprints: one made by an ankylosaur, an armored plant-eating dinosaur, and the other by a carnivorous theropod.

From Washington Post Oct. 1, 2022

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