It’s been 50 years since paleontologists last discovered a new tyrannosaur in Canada,media CNET reported. Now palaeontologists have discovered a new species called The Thanatistes degrootorum. The history of this tyrannosaur dates back to about 79.5 million years ago, and is older than any other known Canadian tyrannosaur species.
“This is the oldest large tyrannosaur ever found in Canada, and it was discovered earlier than the previous tyrannosaur,” said Darla Zelenitsky, a palaeontologist at the University of Calgary. The study was published in January in the journal Cretaceous Research.
The dinosaur’s name is derived from the combination of Thethantos of the ancient Greek mythology and the Greek word for “theristes”, which is also translated as reaper. Putting the two together, we get an amazing nickname, “Reaper of Death.”
The “degrootorum” section of the name is a tribute to John and Sandra De Groot of Alberta, Canada. John De Groot, who discovered the fossil fragments while hiking, said at a press conference at the Royal Tyrrell Museum of Paleontology in Dylan, Canada, on Monday: “The jaw bone fossil is an absolutely amazing discovery. We know this is special because you can clearly see the fossil teeth. “
The researchers also analyzed the dinosaur’s skull and jaws. “Fossils have several physical characteristics, including ridges on the upper jaw, which clearly distinguishes them from new species,” said Jared Voris, a doctoral student at the university and lead author of the study. “
The team estimates that the new species is about 79.5 million years old, 2.5 million years before the second-largest known Canadian tyrannosaur species. “This discovery is significant because it fills a gap in our understanding of the evolution of the Tyrannosaurus rex,” said Francois Therrien, curator of dinosaurs at the Royal Tyrrell Museum of Paleontology in Dylan, Canada. “
Analysis suggested that the fossil may be about 26 feet (8 meters) long. Another famous example of the Tyrannosaurus fossil, Sue, is more than 40 feet (12 meters) in length.
The researchers hope to delve into the differences in size, size and physical characteristics of the tyrannosaurs in different regions. There are still many mysteries in the family tree of the Tyrannosaurus rex.