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Hips don’t lie: unearthed dinosaur pelvic skeleton shake adult family tree

Dinosaur hip skeleton unearthed by a University of Alberta paleontology tyro are jolt adult a family tree of a organisation of tiny meat-eaters that lived 75 million years ago.

Aaron outpost der Reest was doing margin work in Dinosaur Provincial Park, about a two-hour expostulate southeast of Calgary, as partial of his undergraduate studies in Jun 2014.

It was starting to sleet and a organisation was about to container it in for a day, yet there was a mark adult a mountain outpost der Reest and his partner wanted to check out.

Close to a collection of tiny bone fragments, outpost der Reest speckled a bone adhering out that incited out to be a pelvis of what was believed to be a Troodon formosus — a dinosaur identical to a raptors seen in a Jurassic Park movies.

It was odd for a stays of that class to be so well-preserved in North America, outpost der Reest said.

‘Exceptionally rare’

“At that indicate we kind of started freaking out since we knew what it was right divided and it was one of these unusually singular animals,” he said.

There was something bizarre about a bones, yet — a pubis bone was rotated backwards.

“It’s a usually of a some-more modernized troodontids that do this. Every other one, it’s directly indicating true down,” pronounced outpost der Reest.

“We knew right divided that it was something different. It represented something we had never seen before.”

The hip bone find caused outpost der Reest to take a closer demeanour during cranial skeleton that were formerly collected in southern Alberta.

As a result, Troodon formosus is no longer deliberate a current species.

Aaron Van Der Reest

“We knew right divided that it was something different,” pronounced Aaron Van Der Reest. “It represented something we had never seen before.” (Supplied)

Research published Tuesday in a Canadian Journal of Earth Sciences describes dual new classifications that have taken a place. It’s probable even some-more class will be identified in a future.

For one of a new species, outpost der Reest resurrected a name Stenonychosaurus inequalis.

He called a other Latenivenatrix mcmasterae — a reverence to his late mom Lynne outpost der Reest, whose lass name was McMaster.

She died of cancer a year before a discovery.

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