Smilodon fatalis, sabertooth cat skull Stegosaurus Green River Formation

Green River Formation

unlike the three toes found in later ichthyosaurs

All teeth are at least 2-3 inches in length

broad bodies (as evidenced by the wide pelvis of other therizinosaurids)

Smilodon fatalis, sabertooth cat skull Stegosaurus Green River FormationSmilodon (pronounced SMILE oh don) (meaning "knife tooth"), the largest saber toothed cat (or saber toothed tiger), was a fierce predator about 4 5 feet (1. 2 1. 5 m) long. Its one foot (30 cm) long skull had 2 huge canine teeth (they were serrated and oval in cross section) in powerful jaws that opened to an angle of about 120 degrees. It also had very strong jaw and neck muscles that let smilodon stab prey with its deadly teeth. It had a short,