1 entry 1 source
Plesiosauria
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
An extinct order of Mesozoic marine reptiles including the genera Plesiosaurus, and allied forms; -- called also Sauropterygia.
1 entry 1 source
Part of speech: noun (n.)
An extinct order of Mesozoic marine reptiles including the genera Plesiosaurus, and allied forms; -- called also Sauropterygia.