Plesiosauria

plural noun Ple·si·o·sau·ria

Definition of Plesiosauria

  1. 1 :  a suborder of Sauropterygia comprising Mesozoic marine reptiles with dorsoventrally flattened bodies and limbs modified into paddles — compare plesiosaurus

  2. 2 in some classifications :  an order of Reptilia nearly coextensive with Sauropterygia

plesiosaurian

adjective or noun

plesiosauroid

\-ȯˌrȯid\ adjective

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Origin and Etymology of plesiosauria

New Latin, from plesi- + -sauria


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