Search the Dictionary

A very large, powerful, and savage extinct bovine animal (Bos urus or primigenius) anciently abundant in Europe. It appears to have still existed in the time of Julius Cæsar. It had very large horns, and was hardly capable of domestication. Called also, ur, ure, and tur.

A fixed star of the first magnitude in the constellation Boötes.

A genus of American jurassic dinosaurs. A length of sixty feet is believed to have been attained by these reptiles.

A genus of gigantic American Jurassic dinosaurs, having large cavities in the bodies of the dorsal vertebræ.

A carnivorous American Jurassic dinosaur allied to the European Megalosaurus. The animal was nearly twenty feet in length, and the skull bears a bony horn core on the united nasal bones. See Illustration in Appendix.

The larval stage of a tapeworm (Tænia coenurus) which forms bladderlike sacs in the brain of sheep, causing the fatal disease known as water brain, vertigo, staggers or gid.

An extinct, long-necked, marine, cretaceous reptile from Kansas, allied to Plesiosaurus.

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

The east wind.

An American herbivorous dinosaur of great size, allied to the iguanodon. It is found in the Cretaceous formation.

A large Wealden dinosaur from the Tilgate Forest, England. It was about twenty feet long, protected by bony plates in the skin, and armed with spines.

An extinct genus of marine reptiles; -- so named from their short, biconcave vertebræ, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oölitic, and Cretaceous formations.

A genus of trees including, according to modern authors, only the true laurel (Laurus nobilis), and the larger L. Canariensis of Madeira and the Canary Islands. Formerly the sassafras, the camphor tree, the cinnamon tree, and several other aromatic trees and shrubs, were also referred to the genus Laurus.…

A genus of African siluroid fishes, including the electric catfishes. See Electric cat, under Electric.

A large extinct genus of labyrinthodonts, found in the European Triassic rocks.

A gigantic carnivorous dinosaur, whose fossil remains have been found in England and elsewhere.

An extinct genus of large herbivorous dinosaurs, found in Jurassic strata in America.

as discovered in Cretaceous beds near Maestricht, in the Netherlands. [Written also Mososaurus.]

Same as Mosasaurus.

A genus of fossil saurians found in the Permian formation.