Ichthyosauria

plural noun

Ich·​thyo·​sau·​ria
: an order of Mesozoic marine reptiles most abundant in the Lias having an ichthyoid body, elongated snout, short neck, dorsal and caudal fins, limbs modified into paddles by the flattening of the bones, multiplication of the phalanges and addition of from one to four digits, eyes very large and protected by a ring of bony sclerotic plates, and numerous conical teeth set in grooves and adapted for catching fish
ichthyosaurian adjective or noun
ichthyosauroid
-ˌrȯid
adjective

Word History

Etymology

New Latin, from ichthy- + -sauria

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Cite this Entry

“Ichthyosauria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ichthyosauria. Accessed 5 Dec. 2022.

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