A new kind of dinosaur discovered in Argentina, the Joaquinraptor Casalihe lived between 70 and 66 million years ago in the Late Cretaceous, he could measure about seven meters in length and was one of the main predators in the region.
The new dinosaur was discovered and analyzed by a team of Argentine researchers headed by the Patagonian Institute of Geology and Paleontology, which publishes its results in Nature Communications.
The species is a member of the family of megaraptoros thermogaros, carnivorous dinosaurs with elongated skulls and powerful forearms with large claws that were in Asia, Australia and South America, but the lack of complete fossils limited their knowledge about them.
And that until the arrival of Joaquinraptor Casalia well preserved and partially articulated fossil that includes much of the skull, front and rear limbs, ribs and vertebrae, found in Lake Colhué Huapi formation, in Argentine Patagonia.
The researchers determined that the specimen dates back to the late Cretaceous, between 70 and 66 million years ago, which makes it one of the most recent Megarptoran types that have survived.
Also read: they discover a ‘amazingly strange’ dinosaur in Morocco; I was full of spikes
Research on Joaquinrapor is needed
The bone microstructure of the dinosaur suggests that it was an adulus, although possibly not fully developed, and was probably 19 years old at the time of his death.
Extrapolating from other remains of megaraptorans, the team estimated that the J. Cashing I could measure about seven meters in length and weigh more than 1,000 kilograms-
In addition, sedimentary tests indicate that he lived in a warm and humid environment of alluvial plain.
The presence of the fossilized bone of the leg of a crocodile pressed against the lower jaw of the specimen gives clues about its eating behavior and suggests that it could have been an important predator in the region.
However, more research is needed to obtain more information about their behavior and ecological role.
The authors conclude that the J. Cashing and other Mengaraptorans survived as dominant predators in this region of South America before extinguishing at the end of the Cretaceous along with other non -avian dinosaurs.
With EFE information
Follow us on Google News to always keep you informed
