Allosaurus

Allosaurus
Replica of Allosaurus skull (San Diego Natural History Museum).
Conservation status
Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Dinosauria
Order:	Saurischia
Suborder:	Theropoda
Infraorder:	Carnosauria
Family:	Allosauridae
Genus:	Allosaurus Marsh, 1877

Allosaurus was a predatory dinosaur from the Jurassic period. It averaged nine meters in length. There are four species of Allosaurus: Allosaurus grew to about the size of Tyrannosaurus and weighed 1-3 tons.

• A. fragilis
• A. atrox
• A. europaeus
• A. jimmadseni