Meet Patagotitan, the Biggest Dinosaur Ever Found
In short, the dinosaur was as heavy as a space shuttle or a Boeing 737.
Those numbers make the Tyrannosaurus rex and other meat-eaters “look like dwarfs when you put them against one of these giant titanosaurs,” Pol said.
But despite their intimidating size, Pol believes the vegetarian P. mayorum was a gentle giant.
“I don’t think they were scary at all,” he said. “They were probably massive big slow-moving animals.”
“Getting up. Walking around. Trying to run. It’s really challenging for large animals,” he added.
Researchers aren’t quite clear on how the species became so big, but study co-author José Luis Carballido, from the Museum of Palaeontology Egidio Feruglio in Argentina, believes part of it had to do with available food.
“We do not know yet why we have such drastic change in body mass at this time here in Patagonia. There are some major events that are occurring at this time relating to weather and plant availability. Titanosaurs were herbivores, so certainly they had the food they needed, and plants are directly constrained by the weather. Probably the weather helped [cultivate] a particular group of plants living in Patagonia,” Carballido told Newsweek, adding that giant titanosaurs are thought to have only lived in Patagonia.
He went on to state that the P. mayorum, like other herbivores, likely grew to be very large so it could better avoid being attacked by predators.
“The bigger it was, the less predators will try to attack it,” he said.
A cast of the dinosaur’s skeleton is on display at the American Museum of National History in New York. However, it’s so big that its head sticks out into a hallway.
Despite its impressive size, Carballido believes an even larger dinosaur could have walked the Earth, but it probably wasn’t much bigger than the P. mayorum.
“There could be [bigger], but probably we are pretty close to the size limit,” he said.
Prior to the discovery of the P. mayorum, scientists believed the title of world’s biggest dinosaur belonged to the Argentinosaurus, another titanosaur.
The study conducted by Pol and Carballido was published in the journal Proceedings of the Royal Society B: Biological Sciences on Tuesday.