PTEROBRANCHIA
Pter`o*bran"chi*a, n. pl. Etym: [NL., fr. Gr. (Zoöl.)
Defn: An order of marine Bryozoa, having a bilobed lophophore and an axial cord. The genus Rhabdopleura is the type. Called also Podostomata. See Rhabdopleura.
PTEROCERAS
Pte*roc"e*ras, n. Etym: [NL., fr. Gr. (Zoöl.)
Defn: A genus of large marine gastropods having the outer border of the lip divided into lobes; — called also scorpion shell.
PTEROCLETES Pter`o*cle"tes, n. pl. Etym: [NL., fr Pterocles, the typical genus, fr. Gr. (Zoöl.)
Defn: A division of birds including the sand grouse. They are in some respects intermediate between the pigeons and true grouse. Called also Pteroclomorphæ.
PTERODACTYL
Pter`o*dac"tyl, n. Etym: [Gr. ptérodactyle.] (Paleon.)
Defn: An extinct flying reptile; one of the Pterosauria. See
Illustration in Appendix.
PTERODACTYLI
Pter`o*dac"ty*li, n. pl. Etym: [NL.] (Paleon.)
Defn: Same as Pterosauria.