Pterosauria

Definitions

  • WordNet 3.6
    • n Pterosauria extinct flying reptiles: pterosaurs
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Webster's Revised Unabridged Dictionary
    • n. pl Pterosauria (Paleon) An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli , and Ornithosauria .☞ 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.
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Century Dictionary and Cyclopedia
    • pterosauria An order of extinct Mesozoic Reptillia adapted for flight; the pterosaurians, pterodactyls, ornithosauriaus, or flying-dragons. The whole fore limb is modified to support a flying-membrane somewhat like that of bats, and the rest of the skeleton is conformable with this modification. The vertebræ; are comparatively few, procœlous, those of the neck very large, and from three to six of the pelvic ones are united to form a sacrum. The anterior ribs have bifurcated heads. The skull is of great size, with long heavy jaws and large eye-sockets including a circlet of sclerotic ossifications. The sternum is broad and carinate, the scapula and coracoid are slender, and clavicles are wanting. The phalanges of the ulnar digit are extremely long and strong, and support the parachute. The hind limbs are smaller than the fore limbs, and comparatively weak. The order contains the families Pterosauridæ and Pteranodontidæ. They lived from the Lias to the Chalk. See cut under pterodactyl. Also called Ornithosauria, Pterodactyli.
    • pterosauria Same as Pterosauridæ.
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Chambers's Twentieth Century Dictionary
    • n.pl Pterosauria ter-ō-saw′ri-a a group of extinct flying reptiles.
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Etymology

Webster's Revised Unabridged Dictionary
NL
Chambers's Twentieth Century Dictionary
Gr. pteron, wing, sauros, lizard.

Usage

In literature:

They are often named Pterosauria.
"Dragons of the Air" by H. G. Seeley
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