Allosaurus is one of the most famous large carnivorous dinosaurs, occupying the top of the food chain in late Jurassic terrestrial ecosystems. Its model species, the fragile Allosaurus, was created by the great American paleontologist Osnil in the 20th century Marsh described the naming in 1877. They are also the most abundant and widely distributed predators discovered in the Late Jurassic period. Adult Allosaurus can grow up to 9 meters in length, with a few individuals believed to reach up to 12 meters. Although not as robust as the Tyrannosaurus rex, the body proportions of the Allosaurus are more symmetrical, with more developed forelimbs, making it appear more agile.

It is a large carnivorous dinosaur that lived from the late Jurassic to early Cretaceous period. He was one of the most powerful predators on land at that time, known for his enormous size and powerful hunting ability. The body length is usually between 8 and 12 meters, and the weight can reach about 2 tons. Having strong hind limbs and sharp claws, it is very suitable for fast running and catching prey. The head is particularly large, with strong jaw muscles and sharp teeth, which can easily tear apart prey. Although their forelimbs are relatively small, they are still very powerful and can help them secure their prey during hunting. Fossils have been found in both North America and Africa.

Allosaurus is one of the most famous large carnivorous dinosaurs, occupying the top of the food chain in late Jurassic terrestrial ecosystems. Its model species, the fragile Allosaurus, was created by the great American paleontologist Osnil in the 20th century Marsh described the naming in 1877. They are also the most abundant and widely distributed predators discovered in the Late Jurassic period. Adult Allosaurus can grow up to 9 meters in length, with a few individuals believed to reach up to 12 meters. Although not as robust as the Tyrannosaurus rex, the body proportions of the Allosaurus are more symmetrical, with more developed forelimbs, making it appear more agile. The number of specimens is also much larger than that of Tyrannosaurus rex.