Monday , November 30 2020

A complete skeleton of Devine Tasmania on steroids & # 39; reveals strict secrets & # 39; Australia – Science News

Large marsups are used to watch in the vicinity of Australia's forests in our recent geological history.

Key points:

  • Thylacoleo used its tail as an anchor when drawing into predation
  • Strong legs suggest that it climbs
  • Tooth chemistry shows that it is predatory on woodhouses

There was a huge cangoule and a huge roam among them, but at the top of the food chain was marsupial lion, described by the naturalist Richard Owen in 1877 as "one of the great and most destructive animals of wild animals".

Weighs over 150 kilograms, with powerful heads and hands with large equipment, the marsupial lion – Tail of meat carnifex – was an Australian predator until the last one died somewhere around 35,000 years ago.

Now for the first time, using bones found in the Komatsu Cave in Naracoorte in South Australia and a Flying Star Cave in Nullarbor, scientists have been able to analyze a complete skeleton including tail parts and clavicles-collarbones .

The discovery has triggered a new insight into the "devil on Tasmania on steroids", and researcher Rod Wells, from the University of Flinders, who announced his findings in Main One today, learned that the A lion can stand upright using his rigid tail as a prop.

And instead of pursuing prey, it was a powerful liver hunter, probably launching assaults of trees or other high elevations.

"[And] if you're going to use forearms to make strong things like pulling up a tree or fighting and hearing to hard prey, you need a way to raise your pectoral rotation, and I & # 39; n think that's what the strong coins face. "

The photo as it stands now is a African predator who could climb trees and cut his prey with long crews, possibly dragging him slaughtered back into the branches to get clear of breeders.

"I'm a little eager to use the words" drop bear ", but I think it's a very severe predator," said Professor Wells.

A full picture of Devine Tasmania on steroids & # 39;

Professor Wells discovered the first whole skull of Thylacoleo in 1969. Prior to that, there was only one poorly-collected skull ever collected from New South Wales in 1966.

"In 69, we pulled a few rocks out of the cave in Naracoorte and captured the store on what is now the World Heritage fossil site, and the first specimen I & It's up to be the skull of Thylacoleo, "he said.

Over the years to come, Professor Wells and others discovered more pieces of jigsaw, until the photo came to a prominent Australian character.

He has the front teeth of her herbal diprotodontic riches, with principalists being honored in "bolt-cutter like" blades.

The back legs are similar to the possibility of gogantic brush, the long-fronted arms and a short body like koala, and the deepest lower back of Tasmania devil.

And the last pieces of the post – the tail and the colerbones – add pressure to the theory that Thylacoleo is something of a forest expert, can climb like a koala and hunt as a devil of Tasmania, according to Mike Archer.

"[Professor Wells’] said that she seemed to have a very specialized tail to be a pitch up, making sense, "said Professor Archer, who did not work on this paper.

"When you're thinking about a Tasmania crash on steroids – many steroids – if she spent time wearing a separate kangaroo, the idea that she would sit back on her haunches means that tail needs to bend like that. "

Professor Archer has done extensive work on a number of Thylacoleo species, and he says he has noticed the fossil record in Riversleigh in the heart of Queensland, the evolution of a cat-sized predator, to a leopard, and then to a rich predator.

& # 39; Blitzkrieg & # 39; or climate change, where did they go?

Professor Archer has also been analyzing Thylacoleo's teeth structure.

His research has led to the conclusion that the teeth of the lions specialize in the consumption of vegetarian C3 – animals tend to be shrubberries and hanging leaves – rather than C4 herbivores, the grass browsers.

The remains of tree brackets have also been found alongside the skeletons of lions. And although the discovery of Thylacoleo has been discovered from wet regions along Plain Nullarbor, it is known that these areas have been included in thick woodland in the past.

Some argue that the advent of people in Australia was the catalyst for delaying megafauna as the lion – called the "blitzkrieg" theory.

But both Professor Archer and Wells argue that climate change, which in turn led to the arrival of the country and that thinning forests where Thylacoleo was prey was predatory, more likely to be prohibit.

About half of the Australian megafauna had already disappeared by the time the people arrived, according to Professor Archer.

"The megafact started to disappear in boats – a few loads disappeared every 10,000 years, so with the great climatic climates. Every time we had one of these big things we are losing more.

"There was always confusion when people came in, the same thing happened, so it was easy to sing to the first collection, despite zero evidence to & # 39; w back, that men do.

"[But] In fact, there is no direct evidence that no man would fall any individual animal from any of the megafaunal animals that have disappeared. Not one The only evidence we have is that they co-exist. "

Once the wild animals fell and the most destructive had passed, it went to smaller animals to pick up the sarn, according to Professor Wells.

"The advisers left to tossile – the Tasmania devil".

* Archaic English – cruel, fierce, terrible.

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