Dinosaur dinosaur dinosaur dinosaur ‘rewrite’ t.rex family tree

Scientists have discovered a new type of dinosaur – in the collection of the Mongol Museum – to say that it “transcribes” the evolutionary history of the tyrannosaur.

Researchers concluded that the two skeletons of 86 million years they studied belonged to the species that is now the closest ancestor of all Tirannosaur-expensive predators involving the iconic T.Rex.

The researchers called the type of khankhuulu (pronounced khan-koo-loo) Mongoliensis, which means the dragon of the Prince of Mongolia.

Discovery, Published in nature, is a window in the way the tyrannosaurus developed to become powerful predators who terrorized North America and Asia until the end of the dinosaur rule.

“Prince” refers to that it is an early, smaller tyrannosauroid, “explained Prof. Darla Zelenitsky, Paleontologist from the University of Calgary, Canada. Tirannosauroids are a super carnivorous dinosaurs who walked on two legs.

The first tyrannosauroids were small.

Doctoral student Jared Voris, who conducted a survey with Profa Zelenitsky, explained: “They were really little predators who lived in the shadow of other apex predatory dinosaurs.”

Khankhuulu is an evolutionary shift – from those little hunters who poured over during the Jurassic period – to a terrible giants, including T.Rex.

He would weigh about 750 pounds, while adults T.Rex could weigh as much as eight times, so “this is a transitional [fossil]”Explained by Profa Zelenitsky,” between earlier ancestors and powerful tyrannosaurs. “

“It helped us to revise the Tirannosaur family tree and rewrite what we know about the evolution of the tyrannosaur,” she added.

The new species also shows the early evolutionary phases of features that were key to the tyrannosaur tirannosaur, including anatomy of the skull that gave it a strong jaw. Jared Voris explained, “We see the features in their nasal bone that eventually gave the tyrannosaurs of those very powerful bite forces.”

The evolution of such powerful jaws enabled T.Rex to run into larger prey and even bitten the bone.

The two partial skeletons the team examined in this study was first discovered in Mongolia in the early 1970s. Initially, they were assigned to an existing species, known as Actrosaurus, but when Mr. Voris examined them, he identified the features of similar tyrannosaurus that separated him.

“I remember getting a text from him – that he thought it was a new kind,” recalled prof. Zelenitsky.

The fact that this group of dinosaur was able to move between North America and Asia – through the land bridges that connected Siberia and Alaska at the time – it also helped them find and occupy different niches.

Mr. Voris explained: “This movement forward -ate between the continent is basically pushed the evolution of different groups of tyrannosaur” over millions of years.

Professor Zelinitsky added: “This discovery shows us that before the tyranninosaurs became kings, they were princes.”