PLESIOSAURIA
Source: 567
‖Ple′si‐o‐sau″ri‐a (?), n. pl. [[NL. See Plesiosaurus.]] (Paleon.) An extinct order of Mesozoic marine reptiles including the genera Plesiosaurus, and allied forms; — called also Sauropterygia.
Source: 567
‖Ple′si‐o‐sau″ri‐a (?), n. pl. [[NL. See Plesiosaurus.]] (Paleon.) An extinct order of Mesozoic marine reptiles including the genera Plesiosaurus, and allied forms; — called also Sauropterygia.