Scientists have discovered a new dinosaur from Argentina with powerful nails, serving an ancient crocodile bone.
The new find was perhaps 23 feet long and was congratulated from a mysterious group of dinosaurs called megaraptors. They overtook what South America, Australia and parts of Asia are now, and have divorced different species over millions of years.
Megaraptors were known for their stretched skulls and “huge and very powerful nails,” said Lucio Ibiricu from the Patagonian Institute of Geology and Paleontology, which belonged to the Discovery team.
However, it is not yet clear how these creatures hunted and where they fall into the evolutionary time zone – mainly because the fossils that have already recovered have been incomplete.
This image shows the artist’s illustration of the newly discovered dinosaur Joaquinraptor Casali with the front leg of the ancient crocodile relative in the mouth. / Credit: Andrew McAfee, Carnegie Natural History Museum over AP
“Megaraptors are one of the least understandable dinosaurs from all,” Ibiricu told Reuters.
In a new study, investigators said they revealed part of the skull, as well as the part of the bones of the hands, legs and tail from Lago Colhué Huapi Rocks in Patagonia. They noticed unique bone features that made them realize that it could be a new species.
This latest Member of the Megaraptoran clan, named Joaquinraptor Casali, “fills the big gap by providing one of the most comprehensive skeletons,” In the letter, Federico Agnolin with the Argentine Museum of Natural Sciences Bernardin Rivadavia. Agnolin did not participate in a study published on Tuesday in Nature Communications.
The speed was probably living 66-70 million years ago – close to the time when the dinosaurs disappeared – and when it died, it was at least 19, even though scientists do not know who killed him.
The bone of the front leg, pressed against its jaws, belonging to an ancient crocodile relative, could give some clues in his diet and whether it was the best predator of wet prehistoric flood plains.
The research co -author Matt Lamanna said Reuters that unlike Rex, which contained huge teeth and shooters, Joaquinraptor probably used his long hands to capture the prey.
“This shows that these two predatory dinosaur lines have evolved differently to apply the same thing – that is, to capture, kill and eat other animals like other dinosaurs,” Lamanna told Reuters. “It is exactly why these groups have evolved on these different paths of evolution remains a mystery, but this shows that there was more than one way to be a top -level predator during the chalk.”
Researcher Marcelo Luna considers Joaquinraptor, a Lago Colhue Huapi formation in Patagonia, Argentina, in this image, published in 2025. September 23
Ibiricu called the new dinosaur in memory of his son Joaquin. Although Joaquin was very young and had not yet pressed the gunshot of the dinosaurs, Ibiricu still thinks he would have appreciated that he was named after one.
“All kids love dinosaurs, so he would probably be a fan,” he said.
This discovery occurs just a few months after scientists found Khankhuulu Mongolonsis, a new ancestor of T. Rex, which researchers called researchers “Missing a link” between the apex of predators.
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