Pte*ran"o*don(?), n. [Gr. wing + priv. + , , a tooth.] (Paleon.) A genus of American Cretaceous pterodactyls destitute of teeth. Several species are known, some of which had an expanse of wings of twenty feet or more.
Pte*ran`o*don"ti*a(?), n. pl. [NL.] (Paleon.) A group of pterodactyls destitute of teeth, as in the genus Pteranodon.
Pte*rich"thys(?), n. [NL., fr. Gr. wing + fish.] (Paleon.) A genus of Devonian fossil fishes with winglike appendages. The head and most of the body were covered with large bony plates. See Placodermi.
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