Allosaurusis one of the best known large carnivorous dinosaurs from North America and Europe. It hunted during the Jurassic, around 150 million years ago, and was the largest and most abundant predator in its ecosystem.Scientific Name:Allosaurus fragilisCh
Allosaurusis one of the best known large carnivorous dinosaurs from North America and Europe. It hunted during the Jurassic, around 150 million years ago, and was the largest and most abundant predator in its ecosystem.
History
Allosaurus fragiliswas one of the first large meat-eating dinosaurs discovered and named in North America. Bones now regarded as probablyAllosaurusremains were described in 1870 under the name ofAntrodemus. However, the first definitive bones ofAllosauruswere found in Caon City, Colorado, and described in 1877 by the eminent American paleontologist, Othniel Charles Marsh of Yale university. Since then, the fossilized remains of at least 60Allosaurusindividuals have been found and described from across the USA, including some complete skeletons.
Allosaurusis the most common theropod dinosaur in a series of rocks called the Morrison Formation. This rock formation was deposited during the Jurassic, about 150 million years ago, and is exposed in many states across the country.Allosaurusis known from the Morrison Formation of Colorado, Montana, New Mexico, Oklahoma, South Dakota, Utah and Wyoming. A slightly different species ofAllosaurushas also been uncovered in Portugal, Europe, and was given the nameA. europaeusin 2006.
The American species,Allosaurus fragilislived alongside a diverse fauna of other well-known dinosaurs from the Morrison Formation, including the platedStegosaurus, and the long-neckedApatosaurus, two plant-eating dinosaurs it may have hunted.
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