Newly Discovered Argentine Dinosaur Sheds Light on Megaraptorans

Paleontologists in Argentina have unearthed a new dinosaur species, Joaquinraptor casali, offering valuable insights into the enigmatic megaraptoran group. The discovery includes a well-preserved partial skeleton featuring parts of the skull, limbs, ribs, and vertebrae.

Joaquinraptor casali measured approximately 23 feet (7 meters) in length and weighed over a ton. It lived around 67 million years ago in central Patagonia. Notably, a crocodile relative's leg bone was found lodged in its jaws, suggesting it may have died while feeding.

Megaraptorans are known for their elongated skulls and large, powerful claws. This specimen provides one of the most complete skeletons of the group to date, enhancing understanding of their anatomy and behavior.

The species was named in honor of paleontologist Lucio Ibiricu's son, Joaquin. The findings were published in the journal Nature Communications.