Tyrannosaurids

Of all the carnosaurs, those in the tyrannosaurid family were the largest and probably the fiercest. The most famous member, Tyrannosaurus rex, was about 46 ft (14 m) long and 8 tons (tonnes) in weight. It is the largest land-based carnivore we know of. Tyrannosaurids not only caught and killed prey, they also scavenged dead creatures. They lived near the end of the Cretaceous period, and their remains have been found in North America and eastern Asia.

Tyrannosaurus rex tooth

Serrated edge

Tyrannosaurus rex tooth

Serrated edge

Bird foot The leg bones of Tyrannosaurus rex were thick and heavy to support its enormous weight. The metatarsal foot bones were locked into a single support, taking the weight above the three toes.

Metatarsals

Knee

Claws on end of toes

Metatarsals

Knee

Ankle

Claws on end of toes

Tyrannosaurus Rex Metatarsal Pictures

Big teeth Tyrannosaurids had huge mouths, rimmed with huge, curved, serrated teeth. Some Tyrannosaurus rex teeth were 7 in (18 cm) long.

Ankle

Tyrannosaurus rex As the mightiest hunter, Tyrannosaurus rex would have had only another Tyrannosaurus rex to fear. But, like other animals, two Tyrannosaurus rex would have avoided confrontations, unless it was over females, territory, or food.

Carnosaurs

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  • asphodel
    Is Tyrannosaurus Rex a tyrannosaurid?
    9 years ago

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