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plesiosaur

noun/ˈpliːsiəsɔːɹ/

plesiosaur: any of the order †Plesiosauria of extinct marine reptiles, from the Jurassic and Cretaceous periods
Image: Dmitry Bogdanov, CC BY 3.0, via Wikimedia Commons

What It Means

Any of the order †Plesiosauria of extinct marine reptiles, from the Jurassic and Cretaceous periods.

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Plesiosaur in Context

“It is the first time in Australia the head and body of an elasmosaur, a type of plesiosaur, has been found in one piece.”

— 2022 December 6, Rachael Merritt, “Australia's first complete plesiosaur fossil discovered in outback Queensland”, in ABC News

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Did You Know?

Backformation of translingual Plesiosaurus, named by William Conybeare and Henry De la Beche in 1824 because plesiosaurs were more like a normal reptile than Ichthyosaurus, which had been found in the same rock strata a few years earlier. Surface derivation, plesio- + -saur.

Source and license

Adapted from Wiktionary: plesiosaur (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws chose the word and reformatted its meaning, examples and origin.

Cite this entry: “plesiosaur.” Word.ws, https://word.ws/plesiosaur. Based on Wiktionary, CC BY-SA 4.0.

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