1/9/2024 0 Comments Actual size of trex![]() rex., like all dinosaurs, it was always making new teeth. rex broke off some of those teeth on or in the bones of other dinosaurs.įortunately for T. rex could well have penetrated the hide (except when armored), the flesh, and the bones of another dinosaur with a single bite. With thick, strong teeth the size of bananas, T. rex's size advantage over other predators, its teeth were oversized. But as Jim Farlow, a dinosaur paleontologist at the University of Indiana, Purdue, found, even in proportion to T. rex to have big teeth, since it was one of the biggest carnivores ever. They were some of the biggest teeth of any dinosaur (Spinosaurus, a North African dinosaur known only from bits and pieces, had bigger teeth and may have been a bigger carnivore). These cheek teeth were enormous, a foot long including the root, and as big around as a child's fist. ![]() rex had twelve or thirteen additional teeth on each side of the upper jaw. They would have been more precise in raking meat from bone, Phil says, without biting right through the bone as T. The shape of these teeth was fairly wide and flat, designed for nipping, according to tooth expert Phil Currie. Among meat-eating dinosaurs, only the little Troodons and tyrannosaurids had these. Up front, it had incisor-like teeth, as all tyrannosaurids do, four on each premaxilla, the bone in the front of the upper jaw. ![]() There might have been fifty teeth in its mouth at any one time. ![]() rex had bigger choppers, more varied in size and shape, than those of other tyrannosaurids. ![]()
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