plural noun

: a suborder of Sauropterygia that is sometimes regarded as a separate order and that comprises armored Triassic reptiles resembling the turtles in many respects see placodus

Word History


New Latin, from Placodont-, Placodus, genus of reptiles + -ia

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Dictionary Entries Near Placodontia

Cite this Entry

“Placodontia.” Dictionary, Merriam-Webster, Accessed 17 Jun. 2024.

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