![]() ![]() ![]() rex species would weigh between 11,000 and 15,000 pounds and grow to around 40 feet in length, thus outgrowing the Ulughbegasaurus considerably. rex to evolve into the dominant predator we know from the Jurassic Park franchise and other movies and TV shows. ![]() This disappearance would have allowed the early T. "The disappearance of likely allowed tyrannosaur species to become the apex predators of Asia and North America some 80 to 90 million years ago," Zelenitsky said. ![]() Paleontologists can tell a lot about how an extinct animal lived from its teeth. The apex predator's fossilized teeth show that the Ulughbegasaurus had slashing, blade-like teeth. rex's ancestor in the prehistoric food chain, according to Zelenitsky. The sheer size wasn't the only advantage Ulughbegasaurus had that would have put it above the T. Scientists Find Evidence Dinosaur-Killing Asteroid Caused Mile-High Tsunami.103-Million-Year-Old Dinosaur Bone Discovered in 'Fossil Hotspot'.Scientists Discover Terrifying New 'Shark-Toothed' Dinosaur."The ancestor is a genus called Timurlengia, a tyrannosaur that was under 200 kilograms (440 pounds) in body weight," she told Newsweek. The T.rex that most of us are familiar with would not evolve for around another 25 million years. "It was like a grizzly bear compared to a coyote." "They probably kept the tyrannosaurus down, they were obviously better apex predators," Zelenitsky told The Calgary Herald. That means that not only would Ulughbegasaurus have overwhelmed the that animal in competition for food, it likely held back the evolution of the smaller species. rex species that walked the Earth at that time grew to only around 10 feet in length and weighed around 440 pounds (200 kilograms). The fact that it was between 24.5 feet and 26 feet in length and weighed around 2,000 pounds means that it would have been the apex predator of that era of Earth's prehistory. The creature lived 80 to 90 million years ago, long before the T.rex but alongside one of its smaller evolutionary predecessors, University of Calgary researchers, associate professor of paleontology Darla Zelenitsky, and Dr. rex ancestor which existed at the time, has been named Ulughbegasaurus and was identified from a fossilized jaw bone. The dinosaur, which was five times the size of the T. RELATED: 10 Iconic Dino-Moments to Celebrate 30 Years of Jurassic Park What are the best dinosaurs in the Jurassic Park franchise? Let's rank 'em! 30.Researchers have helped identify a new prehistoric predator that dominated the evolutionary ancestor of the infamous Tyrannosaurus rex ( T. Come join us for a wild stampede down memory lane as we lay some appreciation on the menagerie that has gone on to change cinematic history. And since there are three decades of Jurassic films to celebrate, SYFY WIRE decided to rank our very favorite dinosaurs that appear in the franchise. While every dinosaur in the franchise is welcome, how they are used in any given film varies. It's success spawned two franchise cinematic trilogies stuffed full of every species of dinosaur, and even some invented ones. A modern classic, Jurassic Park still holds up as one of the best CGI movies ever, and also as one of Spielberg's most perfect films. Good thing this month is the 30th anniversary of the release of Jurassic Park (now streaming on Peacock!), director Steven Spielberg's magnum opus adaptation of Michael Crichton's novel of the same name. When you love dinosaurs, all you want to do is celebrate those extinct kings of the Triassic, Jurassic, and Cretaceous periods. ![]()
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