Allosaurus fossils have been found in the Morrison Formation of western North America, the Lourinhã Formation of Portugal, and the Tendaguru Formation of Tanzania. Their fossils date to between 155 and 150 million years ago.
The bulk of Allosaurus remains have come from North America, with material also known from Portugal and possibly Tanzania.
In 1869, Dr. Ferdinand Vandeveer Hayden obtained a second hand fossil of an Allosaurus vertabrae that had come from Colorado. He sent it to Joseph Leidy, who in turn assigned it to the new genus Antrodemus. It is now known that this was an Allosaurus fossil. In 1877, Othniel Charles Marsh found some fragmentary remains of Allosaurus, which he then named Allosaurus fragilis.
They are large-meat eating dinosaurs The name allosaurus means 'different lizard'. There were several allosaurus species. Allosaurus Atrox, Allosaurus Fragilis were the most common, averaging 28 to 32 feet in length, and weighing one to two tons.Rrecently, two new allosaur species have come to light, both as big as T Rex.
There is one accepted species in the Allosaurus genus. Its full Latin (or scientific) name is Allosaurus fragilis.
Allosaurus did not have horns.
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how many teeth does allosaurus have
"allosaurus" (different lizard)
There were many species of allosaurs. Allosaurus Fragilis, Allosaurus Atrox, and Allosaurus Amplexus, plus others. Some were nearly as large as T Rex.
No descendants of Allosaurus exist today. However, birds evolved from other carnivorous dinosaurs, which were relatives of Allosaurus. Thus, the closest living relatives of Allosaurus are birds. All birds are equally related to Allosaurus.
No, allosaurus was the top predatore of its age.
Allosaurus means "Different Lizard".