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Argentinosaurus -- dethroned?

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Carnosaur21

MemberCompsognathusAug-09-2017 7:49 PM

Dinosaur that weighed the same as a Boeing 737 is biggest ever found

"It’s official: an Argentine dinosaur as heavy as a Boeing 737 is the biggest ever discovered.

The behemoth weighed more than 65 tons and perhaps as many as 77, a new study says. That makes the animal not just the biggest known dinosaur but also the biggest known land animal ever. Only a few whale species are heftier — and this dinosaur’s bones show it was still growing.

Scientists have christened the gigantic vegetarian Patagotitan mayorum, in honor of the Argentine region of Patagonia and the Mayo family, owners of the Patagonian farm where a worker stumbled on the fossil in 2010. The titan of Patagonia is described in scientific detail for the first time in this week’s Proceedings of the Royal Society B: Biological Sciences. The study also sheds new light on how and when dinosaurs went from big to truly gargantuan.

 

Patagotitan, which was some 120 feet long, has some competition as the world's biggest dinosaur. Tantalizing scraps of bone hint at species that are more massive still.

“I don’t think the record we have now will hold forever,” says study co-author Diego Pol of Argentina’s Egidio Feruglio Museum of Paleontology. But “so far, out of the dinosaurs … we can recognize as valid species, we don't have any (others) as big as Patagotitan.”

 

Pol and his colleagues excavated fossils of six different Patagotitan specimens from the Mayo family farm. The 150 bones include examples of 30% of the animal’s skeleton, which to scientists is almost as mind-boggling as the animal’s weight. Many other dinosaurs in the so-called Titanosaur group are known from mere scraps of bone.

“This is clearly a very, very large animal, and there’s a lot of it, and that’s an extremely rare thing as these animals go,” says Matthew Lamanna of the Carnegie Museum of Natural History, who was not involved in the find. “Patagotitan is going to continue to yield insights into anatomy and biology and even the size of these giant titanosaurs for years to come.”

 

Already Patagotitan, which lived some 100 million years ago, has shown that even the most humongous animals were sociable. The six specimens found at the Mayo ranch were found in a cluster, and several had died at roughly the same time. So Patagotitan seems to have returned repeatedly to particular sites, perhaps drawn by water or food.

Artist rendering of the Patagotitan.

Artist rendering of the Patagotitan. (Photo: G. Lio)

The finding also suggests “they could be hanging around in groups,” perhaps to look after young, says Roger Benson of Britain’s University of Oxford, who wasn’t involved with the study. But how animals as long as the space shuttle maneuvered around each other “is really hard to imagine.”

When Pol and his colleagues built a family tree of Patagotitan and other titanosaurs, they found that almost all of the family’s colossal members were close kin. And most appeared, like Patagotitan, roughly 100 million years ago in South America. At the time, the climate was warmer and flowering plants were taking over, Pol notes. That may have helped pave the way for dinosaurs that needed to tuck away perhaps 2,000 pounds of food a day.

 

Pol does agree with Lamanna that the discovery of more complete fossils could reveal unsuspected relationships between titanosaurs. That would require scientists to rearrange the family tree, which could overturn the finding that nearly all the biggest of the big sprang up together. But however they evolved, the biggest titanosaurs all seem to hover right around the same size as Patagotitan, he says.

“We don’t have a clue, even a fragment, of bones that are much larger than these titanosaurs,” Pol says. It’s likely that a lucky scientist will someday find an animal larger than Patagotitan, but “it seems we may be getting closer to the maximum possible body size.”

https://www.usatoday.com/story/tech/science/2017/08/08/dinosaur-weighed-same-boeing-737-biggest-ever-found/546630001/

9 Replies

Carnosaur21

MemberCompsognathusAug-10-2017 5:22 PM

wat

Sci-Fi King25

MemberAllosaurusAug-10-2017 5:25 PM

^There are a few bots that post ads on topics.

 

Pretty interesting topic. I wonder if the fully grown animal was larger than a blue whale.

“Banana oil.”- George Takei, Gigantis: The Fire Monster

Carnosaur21

MemberCompsognathusAug-10-2017 6:29 PM

Does the admin not control bots?

 

 

I.Raptus

ModeratorAllosaurusAug-10-2017 7:53 PM

Carnosaur21 we do yes. But sometime they get through. If you see one like the post above, feel free to PM myself or any of the other moderators/staff/admin. We will take care of it.

This one above will be deleted and the member account banned.

Cheers

IRaptus 

I Meme Everything

MemberAllosaurusAug-11-2017 9:31 AM

65 to 77 tons? Argentinosaurus was around a hundred tons from what I've read.

"Part of the journey is the end..."

Sci-Fi King25

MemberAllosaurusAug-11-2017 9:46 AM

^It seems Patagotitan was still growing so we don't know for sure how large it could've gotten.

“Banana oil.”- George Takei, Gigantis: The Fire Monster

Carnosaur21

MemberCompsognathusAug-11-2017 9:55 AM

Argentinosaurus was around 65-70 tons, like this animal is likely to be,

 

@Iraptus,

thanks

I Meme Everything

MemberAllosaurusAug-13-2017 1:56 PM

But I have heard that Barosaurus lentus is the largest dinosaur of all time.

"Part of the journey is the end..."

Carnosaur21

MemberCompsognathusAug-13-2017 10:43 PM

It is not.

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