a big, carnivorous dinosaur, of genus Allosaurus, that lived-in the Jurassic period.
A genus of dinosaurian reptiles explained by Marsh through the Upper Jurassic beds of Colorado and closely allied into better-known Megalosaurus. Obtained extremely quick fore and enormous hind feet, the latter reaching a length of 5 feet.
late Jurassic carnivorous dinosaur; just like but notably smaller compared to tyrannosaurus
A theory or system of social reform which contemplates a complete reconstruction of society with a more just and equitable distribution of property and labor In popular usage the term is often employed to indicate any lawless revolutionary social scheme See Communism Fourierism Saint Simonianism forms of socialism...