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New York City USA - American Museum of Natural History - Tyrannosaurus Rex 03 | by Daniel Mennerich
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New York City USA - American Museum of Natural History - Tyrannosaurus Rex 03

Tyrannosaurus rex was one of the largest land carnivores of all time; the largest complete specimen, FMNH PR2081 (named "Sue"), measured 12.8 metres long, and was 4.0 metres tall at the hips.The Mass estimates have varied widely over the years, from more than 7.2 t ,to less than 4.5 t , with most modern estimates ranging between 5.4 and 6.8 t. Although Tyrannosaurus rex was larger than the well known Jurassic theropod Allosaurus, it was slightly smaller than some other Cretaceous carnivores, such as Spinosaurus and Giganotosaurus.

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Taken on October 16, 2010