ich·​thyo·​saur | \ ˈik-thē-ə-ˌsȯr How to pronounce ichthyosaur (audio) \

Definition of ichthyosaur

: any of an order (Ichthyosauria) of extinct marine reptiles of the Mesozoic specialized for aquatic life by a streamlined body with a long snout, limbs reduced to small fins for steering, and a large lunate caudal fin

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Other Words from ichthyosaur

ichthyosaurian \ ˌik-​thē-​ə-​ˈsȯr-​ē-​ən How to pronounce ichthyosaurian (audio) \ adjective or noun

Examples of ichthyosaur in a Sentence

Recent Examples on the Web In this case, Cartorhynchus revealed an early dietary specialization that would continue in later ichthyosaurs. Ashley Strickland, CNN, "This extinct marine predator started out as a small tadpole-seal hybrid with weird teeth," 8 May 2020 Most Mesozoic-Era ocean-dwelling creatures were actually marine reptiles called plesiosaurs, ichthyosaurs, or mosasaurs, which, despite their appearance, are not considered dinosaurs. Katherine J. Wu, Smithsonian Magazine, "Groundbreaking Fossil Suggests Spinosaurus Is First Known Swimming Dinosaur," 30 Apr. 2020 While other marine reptiles such as porpoise-like ichthyosaurs and long-necked plesiosaurs had the evolutionary flexibility to expand into deeper ocean environments, hyper-specialized thalattosaurs like Gunakadeit may have struggled to follow suit. Katherine J. Wu, Smithsonian Magazine, "215-Million-Year-Old, Sharp-Nosed Sea Creature Was Among the Last of Its Kind," 5 Mar. 2020 An original recipe, this delicious American-style IPA derives its name from the state fossil—the ichthyosaur. Outside Online, "Here’s Why You Can’t Beat Reno Tahoe in Winter," 12 Dec. 2019 Google reports 554 million webpages that mention this word—while ichthyosaur, which was rejected, is nowhere near it (less than a million). Wired, "New Emoji Are So Boring—but They Don't Have to Be," 8 Nov. 2019 Now, thanks to modern medical technology, the ichthyosaur of Warwickshire is finally getting its due. David Grossman, Popular Mechanics, "How Modern Tech Solved the Mystery Behind This Ancient Reptile's Skull," 9 Jan. 2019 Rarely preserved in ichthyosaurs, the braincase allows for scientists to better understand how the animals functioned. David Grossman, Popular Mechanics, "How Modern Tech Solved the Mystery Behind This Ancient Reptile's Skull," 9 Jan. 2019 But the Warwickshire skull's excellent preservation means that scientists are still learning new things about the ichthyosaur lived. David Grossman, Popular Mechanics, "How Modern Tech Solved the Mystery Behind This Ancient Reptile's Skull," 9 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ichthyosaur.' 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 ichthyosaur

1830, in the meaning defined above

History and Etymology for ichthyosaur

ultimately from Greek ichthy- + sauros lizard

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Time Traveler for ichthyosaur

Time Traveler

The first known use of ichthyosaur was in 1830

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Statistics for ichthyosaur

Last Updated

7 Jun 2020

Cite this Entry

“Ichthyosaur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ichthyosaur. Accessed 5 Jul. 2020.

More from Merriam-Webster on ichthyosaur

Rhyming Dictionary: Words that rhyme with ichthyosaur

Britannica.com: Encyclopedia article about ichthyosaur

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