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The Collaborative International Dictionary of English v.0.48 (gcide)

Ornithosauria \Or*ni`tho*sau"ri*a\, prop. n. pl. [NL. See
{Ornitho-}, and {Sauria}.] (Paleon.)
An order of extinct flying reptiles; -- called also
{{Pterosauria}}.
[1913 Webster]


Pterosauria \Pter`o*sau"ri*a\, n. pl. [NL.] (Paleon.)
An extinct order of flying reptiles of the Mesozoic age; the
pterodactyls; -- called also {{Pterodactyli}}, and
{{Ornithosauria}}.
[1913 Webster]

Note: The wings were formed, like those of bats, by a
leathery expansion of the skin, principally supported
by the greatly enlarged outer or " little" fingers of
the hands. The American Cretaceous pterodactyls had no
teeth. See {Pteranodontia}, and {Pterodactyl}.
[1913 Webster]

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