Paleontologists have discovered a new kind of flesh-eating dinosaur, Allosaurus jimmadseni. The latest discovery in Utah belongs to Allosauridae, a class containing carnivorous dinosaurs ranging from small bodies to large ones. Those flesh-eating creatures survived between the Jurassic and Cretaceous periods. As per the University of Utah, paleontologists had unearthed the first sample of the dinosaur in Dinosaur National Monument located in Northeastern Utah. Whereas, specialists claim it is the ancient species of Allosaurus. They also note that the dinosaur used to roam across western areas of North America around 150 million years ago. So-called Allosaurus jimmadseni occupied the flood plains in the region. The huge meat-eating creatures were about 26-29 feet long.
Researchers have presented their findings in the scientific journal PeerJ on Saturday. Mark Loewen, a co-author of the study, said before this, paleontologists surmised only a single type of Allosaurus exists in Jurassic North America. But the latest research reveals that two species existed at the time. Mark said the newly portrayed Allosaurus jimmadseni developed a minimum of five million years ago than its smaller relative, Allosaurus fragilis. The study also reveals Allosaurus jimmadseni’s skull is more delicate than its subsequent cousin Allosaurus fragilis. Researchers also note that the variation in the size of the head pinpoints diverse eating habits amid the two species.
The research also focuses on other unique features of Allosaurus jimmadseni, like low crests running from the top of the eyes to the nose. Even more, their skull remained moderately narrow from the rear side, including a plain surface to the base of the upper skull under eyes. Danial Chure, a co-author of the study, said identifying a new type of dinosaur in rocks that have been deeply explored through 150 years is an amazing experience of finding. He added A. jimmadseni reveals there is much more remaining to learn about the dinosaurs and their world.