New dinosaur discovered in Argentina with a crocodile leg in its jaws:
/ News/ AP
Dinosaur footprints greater than 160 million years in England
Scientists have discovered a new Argentina’s dinosaur with powerful claws, festioning in an old crocodile bone.
The new discovery was possibly 23 feet long and acclaimed by a mysterious group of dinosaurs called Megaraptorans. They were lodged in what is now South America, Australia and parts of Asia, dividing into different species for millions of years.
The Megagaptorans were known for their stretched skulls and “huge and very powerful claws,” said Lucio Ibiricu, of the Patagonian Institute of Geology and Paleontology, which was part of the Discovery team.
But it is not yet clear how these creatures hunt and where they fall in the evolutionary timeline, mainly because the fossils recovered so far were incomplete.

“MegarapTorans are among the less understanding dinosaurs of all,” Ibiricu told the Reuters news agency.
In a new study, the researchers said they discovered part of a skull, as well as arms bones, legs and tail of Rock Lago ColhuƩ Huapi formation in Patagonia. They noticed unique characteristics in the bones that made them realize that this could be a new species.
This last megagaraptoran clan member called Joaquinrapor Casali “fills an important gap by providing one of the most complete skeletons so far,” said Federico Agnolin of the Argentine Museum of Natural Sciences Bernardino Rivadavia in an email. Agnolin did not participate in the investigation, which was published on Tuesday in the journal Nature Communications.
The creature probably lived between 66 and 70 million years ago, about time, dinosaurs became extinguished, and was at least 19 when he died, although scientists do not know what killed him.
The front leg bone pressed against its jaws, belonging to an old crocodile relative, could produce some clues about its diet and if it was the upper predator in the wet prehistoric flood plains.
The study co -author, Matt Lamanna, told Reuters that, unlike T. Rex, that he had massive teeth and small arms, Joaquinrapor probably used his long arms to capture dams.
“This suggests that these two lineages of predatory dinosaurs developed different adaptations to basically achieve the same, that is, to capture, submit, kill and eat other animals such as other dinosaurs,” Lamanna told Reuters. “Precisely why these groups evolved throughout these different evolutionary pathways remain a mystery, but shows that, during the Cretaceous, there was more than one way of being a superior predator.”

Ibiricu appointed the new dinosaur in memory of his son JoaquĆn. While Joaquin was very young and had not yet developed a fascination with dinosaurs, Ibiricu still thinks he would have appreciated having been named after one.
“All children love dinosaurs, so it would probably also be a fan,” he said.
The discovery occurs only a few months after scientists identified the Khankhuulu Mongoliensis, a new ancestor of T. Rex that the researchers called The “missing link” Among apex predators.
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