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Mastodonsaurus :: Mastodonsaurus (n.) A large extinct genus of labyrinthodonts, found in the European Triassic rocks..

Teleosaurus :: Teleosaurus (n.) A genus of extinct crocodilian reptiles of the Jurassic period, having a long and slender snout..

Pliohippus :: Pliohippus (n.) An extinct genus of horses from the Pliocene deposits. Each foot had a single toe (or hoof), as in the common horse..

Sivatherium :: Sivatherium (n.) 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..

Absumption :: Absumption (n.) Act of wasting away; a consuming; extinction.

Pterosauria :: Pterosauria (n. pl.) An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli, and Ornithosauria..

Stegosaurus :: Stegosauria (n. pl.) An extinct order of herbivorous dinosaurs, including the genera Stegosaurus, Omosaurus, and their allies..

Muggletonian :: Muggletonian (n.) One of an extinct sect, named after Ludovic Muggleton, an English journeyman tailor, who (about 1657) claimed to be inspired..

Oreodon :: Oreodon (n.) A genus of extinct herbivorous mammals, abundant in the Tertiary formation of the Rocky Mountains. It is more or less related to the camel, hog, and deer..

Fossil :: Fossil (n.) The remains of an animal or plant found in stratified rocks. Most fossils belong to extinct species, but many of the later ones belong to species still living..

Werewolf :: Werewolf (n.) A person transformed into a wolf in form and appetite, either temporarily or permanently, whether by supernatural influences, by witchcraft, or voluntarily; a lycanthrope. Belief in werewolves, formerly general, is not now extinct..

Odontolcae :: Odontolcae (n. pl.) An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis, and allied genera. See Hesperornis..

Trigonia :: Trigonia (n.) A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia..

Ornithoscelida :: Ornithoscelida (n. pl.) A group of extinct Reptilia, intermediate in structure (especially with regard to the pelvis) between reptiles and birds..

Dromatherium :: Dromatherium (n.) A small extinct triassic mammal from North Carolina, the earliest yet found in America..

Eosaurus :: Eosaurus (n.) An extinct marine reptile from the coal measures of Nova Scotia; -- so named because supposed to be of the earliest known reptiles.

Dodo :: Dodo (n.) A large, extinct bird (Didus ineptus), formerly inhabiting the Island of Mauritius. It had short, half-fledged wings, like those of the ostrich, and a short neck and legs; -- called also dronte. It was related to the pigeons..

Smilodon :: Smilodon (n.) An extinct genus of saber-toothed tigers. See Mach/rodus.

Die :: Die (v. i.) To perish in any manner; to cease; to become lost or extinct; to be extinguished.

Vaisya :: Vaisya (n.) The third of the four great original castes among the Hindus, now either extinct or partially represented by the mercantile class of Banyas. See the Note under Caste, 1..

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