The "tyrant lizard king", a giant carnivorous theropod dinosaur from the Upper Maastrichtian, the last stage of the Cretaceous period, 65 to 66 million years ago: Tyrannosaurus rex is probably the best-known carnivorous dinosaur, particularly because it is believed to be the largest to have ever existed.

The large carnivorous bipedal dinosaur had enormous teeth with knifelike serrations and may have been a scavenger rather than an active predator.