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An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli, and Ornithosauria.

A cleansing from guilt or the pollution of sin; the extinction of sinful desires, appetites, and inclinations.

An extinct order of ganoid fishes. They had a compressed body, covered with dermal ribs (pleurolepida) and with enameled rhomboidal scales.

octrines of Pythagoras or the Pythagoreans. As a philosophic school Pythagoreanism became extinct in Greece about the middle of the 4th century [B. C.]. Encyc. Brit.

An extinct division of Hydrozoa which includes the graptolities.

and several allied genera of the family Rhinocerotidæ, of which several living, and many extinct, species are known. They are large and powerful, and usually have either one or two stout conical median horns on the snout.

An extinct order or suborder of bivalve mollusks characteristic of the Cretaceous period; -- called also Rudista. See Illust. under Hippurite.

An extinct tribe of fossil corals, including numerous species, many of them of large size. They are characteristic of the Paleozoic formations. The radiating septs, when present, are usually in multiples of four. See Cyathophylloid.

A large bird, supposed by some to be the same as the extinct Epiornis of Madagascar. [Obs.]

out into beautiful digressions. (d) To be wasted or exhausted; to become poor; to become extinct; as, an estate managed without economy will soon run out. And had her stock been less, no doubt She must have long ago run out. Dryden. -- To run over. (a) To overflow; as, a cup runs over, or the liquor runs over. (b) To…

An extinct order of herbivorous dinosaurs having the feet of a saurian type, instead of birdlike, as they are in many dinosaurs. It includes the Largest Known land animals, belonging to Brontosaurus, Camarasaurus, and alied genera. See Illustration in Appendix.

An extinct order of birds having a long vertebrated tail with quills along each side of it. Archæopteryx is the type. See Archæopteryx, and Odontornithes.

aller size (M. angustirostris) occurs on the coast of Lower California, but is now nearly extinct.

Any marine saurian; esp. (Paleon.) the large extinct species of Mosasaurus, Icthyosaurus, Plesiosaurus, and related genera.

One of an extinct family of cryptagamous trees, including the genus Sigillaria and its allies.

A genus of very large extinct ruminants found in the Tertiary formation of India. The snout was prolonged in the form of a proboscis. The male had four horns, the posterior pair being large and branched. It was allied to the antelopes, but very much larger than any exsisting species.

rus) which formerly inhabited the Atlantic coast of New England. It is now supposed to be extinct. Called also Labrador duck, and pied duck.

To go out; to become extinct. "His flame did slake." Sir T. Browne.

An extinct genus of saber-toothed tigers. See Mach.

A large extinct bird (Pezophaps solitaria) which formerly inhabited the islands of Mauritius and Rodrigeuz. It was larger and taller than the wild turkey. Its wings were too small for flight. Called also solitary.