Skeleton of Allosaurus jimmadseni. Period: Upper Jurassic (161-145 million years ago). Place of detection: Eastern Big Horn Mountains, Johnson County, Wyoming, USA. Approximate length from nose to tail 3.80 m. This 60% complete specimen is a very rare discovery.
Our Allosaurus is a young and wonderful specimen belonged to the Allosauridae family, whose science has only one complete skeleton found in the Dinosaur National Monument Park in the early 2000s in Utah (USA).
Allosaurus is a kind of theropod dinosaur that lived from 161 to 145 million years ago, in the Upper Jurassic between the Kimmeridgian and Tithonian era, in what is now North America. The allosaurus, whose name derives from the Greek roots saûros (reptile) and állos (different), was named by Othniel Charles Marsh in 1877. It is one of the first theropod dinosaurs discovered and remains one of the most studied and known dinosaurs in popular culture, both in literature and in cinema. The Allosaurus is the main carnivorous predatory dinosaur in the 1912 novel by Arthur Conan Doyle, The Lost World, adapted for the cinema in 1925 and the first feature film to which the dinosaurs belong.
He became almost a star in the 1956 films The Beast of Hollow Mountain and in 1969 The Valley of Gwangi, two cinematographic works that combined the existence of living dinosaurs with the West. The allosaurus will also appear in Jurassic World: Fallen Kingdom. A large bipedal predator at the top of the food chain, Allosaurus hunted large herbivorous dinosaurs. Some paleontologists hypothesize that Allosaurus has a cooperative social behavior and has hunted in a group. He could attack a large prey by harnessing them, using his upper jaw like an ax.
Extremely rare and difficult to find, this allosaurus has the peculiarity of having very small measures compared to others that can be encountered.