Illustration of Joaquinraptor Casali, found in Argentina still with his last meal in his mouth.
Megaraptor lived between 70 and 66 million years ago and was one of the main predators of the area that today belongs to Argentina. It has the name of the son of the study author.
A new dinosaur, discovered in Argentina, was nicknamed Joaquinraptor Casalia tribute to the son of the main author of the study, Lucio M. Ibiricu, on Tuesday in Nature Communications which accounts for the new species of megaraptor.
“We report a new genre and species of megaraptor (dinosaur) based on a well -preserved and partially articulated partial skeleton,” says the study.
O Joaquinraptor Casali lived between 70 and 66 million years agoin the upper cretaceous period. Was also found with his last meal for digesting, among the teeth: a a crocodile arm boneNote a.
According to Argentine investigators, the dinosaur may have measured about Seven meters long and it was one of the main predators Do Centro-Sul da Província de Chubut.
J J. farmhouses It was found in Lago Colhué Huapi, Patagonia Argentina and discovered and analyzed by a team of researchers led by the Patagonic Institute of Geology and Paleontology in Argentina.
The species is a member of the family of megarapatorscarnivorous dinosaurs with elongated skulls and powerful forearms with large claws found in Asia, Australia and South America.
O Joaquinraptor Casali It allowed to know more about the species because it has well -preserved fossils, including much of the skull, anterior, posterior limbs, ribs and vertebrae. According to the investigators, it was from the last megaraptors to extinguish.
Dinosaur’s bone microstructure suggests that he was an adult (possibly not fully developed), probably 19 years old at the time of his death. From other megaraptor remains, the team estimated that It could have weighed over 1,000 pounds.
Sedimentary evidence indicates that the dinosaur has lived in a warm and humid environment with periodic floods.
He and other megaraptors survived as dominant predators in Argentina, before being extinguished at the end of the Cretacic, along with other non -avial dinosaurs, that is, they are not ascendated from birds, including species such as the famous Tyrannosaurus rex.
