An excavation in distant Patagonia, Argentina, has revealed a new species of dinosaur, whose name coincides with what we know so far. Llukalkan aliocranianus o “the one that causes fearIt was the length of an elephant, it had an extremely strong bite, very sharp teeth and huge toenails to catch its prey. It lived about 80 million years ago, during the Cretaceous, at the same time as the famous tyrannosaurus Rex.
In fact, while tyrannosaurs reigned in the northern hemisphere, the abelissauridae to which this family belongs prevailed in the southern hemisphere. L. aliocranianus smelled better and had much better hearing than the other nine species in the family.
The bee’s short arms were similar to those of T. rex, but its skulls were unusually small in length and large in height, with horns and bumps.
These dinosaurs were still exploring their evolutionary options and changing very quickly just before they became extinct. – Ariel Méndez, paleontologist
The fossil revealed a skull that had a unique feature that set it apart from other bees, a small cavity in the ear that is believed to offer a hearing like that of crocodiles and that gave L. aliocranianus a competitive advantage, which which makes it one of the most dangerous. carnivorous dinosaurs of the time.
The research was published in the Journal of Vertebrate Paleontology.