Excavation in distant Patagonia in Argentina revealed a new species of dinosaur, whose name coincides with what we know about it so far. Llukalkan aliocranianus or „one that causes fearHe was the length of an elephant, he had an extremely strong bite, very sharp teeth and huge toenails to catch his prey. He lived about 80 million years ago, during the Cretaceous, at the same time as the famous tyrannosaurus Rek.
In fact, while tyrannosaurs ruled the northern hemisphere, the southern hemisphere was dominated by the abelissaurids to which this family belongs. L. aliocranianus smelled better and had much better hearing than the other nine species in the family.
The short arms of the abelis were similar to those of T. river, but their skulls were unusually small in length and great in height, with horns and bumps.
These dinosaurs were still researching their evolutionary choices and changing very quickly just before they became extinct. – Ariel Mendez, paleontologist
The fossil discovered a skull that had a unique feature that sets it apart from other abelis, a small cavity in the ear that is thought to offer hearing like a crocodile and L. aliocranianus gave it a competitive advantage, making it one of the most dangerous carnivorous dinosaurs of the time.
The research was published in the Journal of Vertebrate Paleontology.