Marshosaurus
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Marshosaurus Fossil range: Late Jurassic |
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Marshosaurus bicentesimus Madsen, 1976 |
Marshosaurus was a genus of medium sized theropod, with a size up to 5 or 6 meters in length. Its remains show it had short but powerful arms. Characters on the skeleton show it was an avetheropod, a member of Avetheropoda, a group of more bird-like theropods including Tyrannosaurus, Velociraptor and Allosaurus. It was described from few remains and has not been formally restudied, although a recently rediscovered partial skeleton may belong to it. Paleontologists are not sure which family this dinosaur belongs to; it may be a carnosaurian or a coelurosaurian. It lived during the Kimmeridgian (Late Jurassic), approximately 155 - 150 mya. The fossilised bones of Marshosaurus were found in the USA.
It was named after Othniel Charles Marsh, who described many dinosaur fossils during the Bone Wars.