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Although its remains are fragmentary, paleontologists believe that this carnivorous dinosaur of the Late Jurassic period may have been as big as a Tyrannosaurus rex. Some paleontologists refer to it as Allosaurus maximus while others have named it Saurophaganax maximus.

Genus Name: Allosaurus ("different lizard")
Type Species: * A. fragilis (Marsh, 1877)

This Species:	Allosaurus maximus ("greatest different
	lizard"; Chure, 1995)

Length: 39-45 feet (12-14 meters)
Weight: 4.5 tons
Time: 150-145 million years ago (Late Jurassic)
Place: Oklahoma
Diet: meat-eater (carnivore)