plural noun

: a subclass of Reptilia comprising Permian and Mesozoic typically aquatic or amphibious reptiles with temporal openings high on the roof of the skull and including the orders Protorosauria and Sauropterygia

Word History


New Latin, from Greek synaptos + New Latin -sauria

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Dictionary Entries Near Synaptosauria

Cite this Entry

“Synaptosauria.” Dictionary, Merriam-Webster, Accessed 18 May. 2024.

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