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Huge, newly discovered dinosaur was literally a big spinner



You stand 230 million years ago in a lush forest in today's Argentina.

You are alone between the Triassic shrubs. Suddenly, an elephant-sized dinosaur comes through the overgrown forest.

The dinosaur looks kind of familiar – sort of like a much smaller brachiosaurus – but it's definitely different.

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Instead of straight legs, huge bodies and long necks, the sauropods, this strange-looking creature, has defined bent legs and a shorter neck, but it's definitely huge, if not as big as its much bigger cousins.

It's … funny-looking.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "But here it is, and its name is Ingentia prima . " data-reactid = "24"> But here it is. And her name is Ingentia prima .

<p class = "Canvas Atom Canvas Text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "A study that started earlier this week in the Journal Nature Ecology & Evolution describes the discovery of the first Ingentia fossil in Argentina. " data-reactid = "25"> A study published earlier this week in the journal Nature Ecology & Evolution describes the discovery of the first Ingentia fossil in Argentina.

The new result shows that giant dinosaurs evolved at least 30 million years earlier than sauropods such as Brachiosaurus or Titanosaurus and changed our understanding of the huge beasts that existed before our arrival over our planet.

Artistic representation of the newly discovered dinosaur.

Image: Jorge A. González

"This is a truly unexpected new discovery, and I think one of the most important new dinosaurs of recent years," said paleontologist Steve Brusatte, who participated in the new study was not involved, via e-mail.

Originally, scientists thought that huge dinosaurs evolved in a very specific way. Basically, researchers have suggested that large dinosaurs should have straight legs with bones that grew at a steady rate over a relatively long period of time.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = " Ingentia interjects Wrench in this model of the giant Dino Evolution. "Data-reactid =" 41 "> Ingentia throws a wrench into this model of the giant Dino Evolution.

The newly discovered dinosaur not only runs on bent legs, but these bones appear to have grown more irregularly in the new study.

<p class = "Canvas Atom Canvas Text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Earlier dinosaurs in the sauropodomorph group went on their hind legs and were small, but Ingentia seems to be something between these smaller dinosaurs and the much larger Brachiosaurus or Titanosaurus that existed millions of years later. "data-reactid =" 43 "> Early dinosaur in the sauropodomorph group went on their hind legs and were small, but Ingentia seems to be something between these smaller dinosaurs and the much larger Brachiosaurus or Titanosaurus that existed millions of years later.

"Sauropodomorphic dinosaurs are a wildly diverse group that originated at the dawn of the dinosaur era and survived until the extinction of the dinosaurs," said Kristina Curry Rogers, paleontologist at Macalester College, Minnesota, via email. 19659017] "… The group is probably best known for their recognizable body plan – tiny head, long neck, columnar limbs, huge body, and long tail.Since almost all later sauropods have this basic body plan, animals that point out how and "Once such a plan has developed, it's exciting," added Curry Rogers, who was not involved in the new study.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm "type =" text "content =" "This discovery helps to throw light as the various features that we took for the extreme gigantism of the sauropods developed first this is important because it helps to connect some points between earlier small sauropodomorphs and the true giants that later dominated the Mesozoic.Refactid = "46"> "This discovery helps to understand when the ver It is important because it helps to connect some points between earlier small sauropodomorphs and the true ]

The newly discovered dinosaur fits into a subgroup called Lessemsauriden, distant cousins ​​of the better known sauropods.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The new study deals with both Ingentia and another lessemsaurid, Lessemsaurus sauropoides who also lived in present-day Argentina. "Data-reactid =" 48 "> The new study examines both Ingentia and another lessemsaurid , Lessemsaurus sauropoides who also lived in what is now Argentina.

"We all have to learn a new dinosaur name, the Lessemsaurids, because these were the first dinosaurs to grow into huge sizes of about 10 tons," said Brusatte.

"They came a long way back in the Triassic about 215 million years ago, much earlier than we thought dinosaurs had grown so large, and the Lessemsaurids force us to reconsider when, why and how many dinosaurs are so outrageous

At the moment it is unclear why these dinosaurs grew to their enormous size earlier than originally expected.

And the truth is that there can be no reason for gigantism.

"Who knows what the purpose of developing a larger body size was-normally things happen randomly, but they work well enough in an environment to be shared in organisms populations," said Curry Rogers.

"But sometimes being bigger can be a helpful defense against predators – and growing fast to gain the larger body size will allow you to outperform those things in your ecosystem that might try to eat you when you go for a long time stay small. "

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