![]() Smaller tyrannosaurs are thought to have existed up to 150 million years before the T. rex only roamed the earth for 15 million years before the species was wiped out. "Suskityrannus gives us a glimpse into the evolution of tyrannosaurs just before they take over the planet," said Nesbitt. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Tyrannosaurus rex couldn’t run says new research rex, called Moros intrepidus, was discovered in February and is thought to have lived 96 million years ago. rex cousins were discovered.Īnother tiny cousin of the T. But in the decades since, scientists weren't certain what it was until other fossils of smaller T. Nesbitt says he first discovered an incomplete skeleton of Suskityrannus hazelae in New Mexico in 1997, and another, more complete, sample in 1998. Suskityrannus hazelae is thought to have existed 92 million years ago, about 20 million years before T. Monday's report said that Suskityrannus hazelae provides an intermediate link between older, smaller tyrannosaurs and the gigantic, last-surviving members of the species. rex weighed around 9 tons and measured about 40 feet (12 meters) in length. Its height would have only reached 3 feet (90 centimeters). T. The newly discovered dinosaur, called Suskityrannus hazelae, is estimated to have weighed anywhere between 45 to 90 pounds (20 to 40 kilograms). "The small group of dinosaurs would give rise to some of the biggest predators that we've ever seen," said Nesbitt. rex cousin could provide one of the best examples yet as to how a smaller family of dinosaurs evolved into monstrous super predators. The study's lead author, Sterling Nesbitt, a paleontologist at Virginia Tech in the US, said that the fossils of the smaller T. rex) evolved from dinosaurs no larger than a small child. Paleontologists announced Monday in the scientific journal Nature Ecology & Evolution that the ferocious Tyrannosaurus rex (T. ![]()
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