T. Rex's Cousin: 'Great Tyrant' a Meat-Eating Monster (LiveScience.com)

Thursday, March 31, 2011 3:01 PM By dwi

A long-lost Chinese relation of T. rex has been discovered, digit same in filler to the unreal beast and digit of the maximal meat-eating dinosaurs ever found.

The remains of this Brobdingnagian carnivore were unconcealed in a fossil quarry, which unitedly with nearby sites in orient China stop digit of the maximal concentrations of dinosaur clappers in the world.

"We titled the newborn species Zhuchengtyrannus magnus, which effectuation the 'Great Tyrant from Zhucheng,' because the clappers were institute in the municipality of Zhucheng, in orient China's Shandong province," said scientist king Hone, a philosopher at the University College port in Ireland.

Zhuchengtyrannus was a tyrannosaurine, a member of a group of Brobdingnagian theropods, or "beast-footed" dinosaurs, that included T. rex and its closest relatives. They were famous for their diminutive arms, two-fingered hands, and large, coercive jaws that could hit delivered powerful, bone-crushing bites.

"It's the prototypal China-only tyrannosaurine, and it's digit of the biggest ever — there are exclusive five carnivorous theropods bigger by my count," Hone told LiveScience.

The tyrannosaurines were probable both predators and scavengers, and lived in North USA and orient aggregation during the late punctuation period, which lasted from most 99 meg to 65 meg years ago. [Dinosaur Graveyard Reveals Oldest T. Rex Relative]

"Zhuchengtyrannus can be important from another tyrannosaurines by a combination of unequalled features in the skull not seen in any another theropod," Hone said.

The researchers estimated that Zhuchengtyrannus rhythmic most 36 feet (11 meters) long, stood  most 13 feet (4 meters) tall, and weighed close to 13,200 pounds (6,000 kilograms), the coefficient of a school bus.

"It's a smidge low T. rex-sized," Hone said. "With exclusive some skull and utter clappers to work with, it is arduous to exactly judge the overall filler of this animal. But the clappers we hit are meet a some centimeters smaller than the equal ones in the maximal T. rex specimen. So there is no doubt that Zhuchengtyrannus was a Brobdingnagian tyrannosaurine."

Most of the another specimens recovered from the quarry where Zhuchengtyrannus was institute belong to a gigantic species of duck-billed dinosaur famous as Shantungosaurus giganteus, which might hit been its prey, as well as some unidentified ankylosaurs. The area was probable erst a super floodplain where many dinosaur bodies were washed unitedly during floods and then fossilized, Hone explained.

The clappers of Zhuchengtyrannus were institute in 2009. "Ironically, they were institute by a construction crew dig the foundations for a museum to put the another fossils in," Hone said.

One other, large tyrannosaurine, famous as Tarbosaurus, had been identified in aggregation before.

The scientists careful their findings online yesterday (March 30) in the journal punctuation Research.

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