an·​ky·​lo·​saur | \ ˈaŋ-kə-lō-ˌsȯr How to pronounce ankylosaur (audio) \

Definition of ankylosaur

: any of a suborder (Ankylosauria) of herbivorous Cretaceous ornithiscian dinosaurs having a long low-lying thickset body covered dorsally with bony plates

Examples of ankylosaur in a Sentence

Recent Examples on the Web Ankylosaurus magniventris is an ankylosaur—a suborder of four-legged, armored, and mostly herbivorous dinosaurs—but not all ankylosaurs were Ankylosaurus. Amy Mckeever, National Geographic, "Here's what made Ankylosaurus the armored tank of dinosaurs," 22 Sep. 2020 In life, the dinosaur — a type of ankylosaur — weighed more than a ton. Ashley Strickland, CNN, "A dinosaur's last meal: A 110 million-year-old dinosaur's stomach contents are revealed," 2 June 2020 In a separate project, for example, researchers unearthed a new species of ankylosaur, or armored dinosaur, in the Beehive State. Fox News, "New species of meat-eating dinosaur discovered in Utah," 27 Jan. 2020 In related work, New York Institute of Technology paleontologist Jason Bourke found in 2018 that a group of armored dinosaurs called ankylosaurs may have had large, convoluted nasal passages filled with blood vessels. John Pickrell, National Geographic, "New discovery shows how T. rex kept its brain cool," 4 Sep. 2019 Pentland said that the Winton area, which is now comprised of sheep and cattle farms, was full of long-necked sauropods, carnivorous theropods (including T. rex), ankylosaurs, ornithopods, as well as pterosaurs. Fox News, "96M-year-old pterosaur nicknamed 'Butch' discovered in Australia," 3 Oct. 2019 Researchers have unearthed a new armored dinosaur in Utah, a new species of ankylosaur, known as Akainacephalus johnsoni. Chris Ciaccia, Fox News, "New spiky-skulled dinosaur lived on a lost continent," 19 July 2018 Plant-eaters like Triceratops and the ankylosaurs, which had to chew their food, also had complex hyoid bones. National Geographic, "Why T. Rex Couldn't Waggle Its Tongue," 20 June 2018 The characters dodge and weave to avoid romping, stomping ankylosaurs, styracosaurs, and allosauri; lava bombs are landing everywhere, and the whole movie pretty much pitches itself off a cliff. Ty Burr,, "The new ‘Jurassic World’ is kind of a Tyrannosaurus wreck," 20 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ankylosaur.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of ankylosaur

1908, in the meaning defined above

History and Etymology for ankylosaur

borrowed from New Latin ankylosaur-, base of the taxa Ankylosaurus ankylosaurus, Ankylosauridae (from Anykylosaurus + -idae -idae), and Ankylosauria (from Ankylosaurus + -ia -ia entry 2)

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The first known use of ankylosaur was in 1908

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Cite this Entry

“Ankylosaur.” Dictionary, Merriam-Webster, Accessed 15 Apr. 2021.

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More Definitions for ankylosaur


an·​ky·​lo·​saur | \ ˈaŋ-kə-lō-ˌsȯr How to pronounce ankylosaur (audio) \

Kids Definition of ankylosaur

: a plant-eating dinosaur with bony plates covering the back

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