Dinosaur Compendium Maximus
|Binomial name(s):||Allosaurus fragilis|
|Maximum known size:||39 feet|
|Lived when:||Late Jurassic Period, 155–150 Ma|
|Classification:||Order: Saurischia; Suborder: Theropoda; Family: Allosauridae; Subfamily: Allosaurinae; Genus: Allosaurus|
Greek ἄλλος/allos ("different, other") and σαῦρος/sauros ("lizard" ) Allosaurus is a genus of large theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period
Top of the food chain where it lived as king of the predators in its land mass.
Potential prey included ornithopods, stegosaurids, and sauropods.
Some palaeontologists interpret Allosaurus as having had cooperative social behaviour, and hunting in packs, while others believe individuals may have been aggressive toward each other, and that congregations of this genus are the result of lone individuals feeding on the same carcasses. It may have attacked large prey by ambush, using its upper jaw like a hatchet.