| The large carnosaurs and tyrannosaurs also appear to have shorter teeth than would be expected for a mammalian carnivore of their body size. |
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| Today's bullies of the Serengeti plains, lions and spotted hyenas, were paralleled by tyrannosaurs in Jurassic and Cretaceous ecosystems. |
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| Throughout the Late Cretaceous, tyrannosaurs diversified into several species, all with large heads, powerful bodies, and two-fingered hands. |
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| With a mouthful of this murderous fruitlike dentition, tyrannosaurs had a whopping bite, which might have made up for their reduced forelimbs. |
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| Birds did not evolve from massive sauropods or antediluvian, tanklike ankylosaurs or even from the large tyrannosaurs. |
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| In fact, he's headed to Montana this August to excavate tyrannosaurs and triceratops. |
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| Because feathers are a unique feature, they are thought to be characteristic of many theropod dinosaurs, including tyrannosaurs. |
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| Recent studies have agreed that T. rex and the tyrannosaurs belong with the coelurosaurs, not with the carnosaurs as was originally believed. |
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| One thing that is quite bizarre about the tyrannosaurs are their tiny little forelegs. |
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| Most predatory dinosaurs such as tyrannosaurs and velociraptors have usually been depicted in museums, films and books as covered in a thick hide of dull brown or green skin. |
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| Other evidence, though, suggests tyrannosaurs were gregarious. |
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| Holtz ultimately concludes that ornithomimosaurs and tyrannosaurs probably form a monophyletic group, although his calculations do not yield a clean separation. |
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| Spinosaurs were large, meat-eating dinosaurs whose fossilized remains are often found in the same areas as the bones of tyrannosaurs. |
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| The infections from both tyrannosaurs were received by being bitten during a fight, like the Herrerasaurus specimen. |
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| Now, it appears that tyrannosaurs evolved much earlier than that, from a group of small, meat-eating dinos called coelurosaurs. |
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| The newly found ancient predator looked very different from most other tyrannosaurs. |
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| Up until now, just two fossilised tyrannosaurs with elongated heads had been found. |
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| Teenage tyrannosaurs were fast and probably traveled in packs. |
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| Famous dinosaurs in that area included predatory tyrannosaurs, the duck-billed hadrosaurs, heavily armored ankylosaurs, and horned dinosaurs known as ceratopsians. |
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| Tyrannosaurs grew out of a group of lightweight, carnivorous, bipedal dinosaurs that also gave rise to birds. |
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| Tyrannosaurs shared a number of characteristics with birds, including hollow bones, feet with three primary toes that all pointed forward, and a wishbone. |
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| Tyrannosaurs are surprisingly common in many North American fossil beds, especially their large, serrated teeth which they shed periodically like most archosaurs. |
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