Tralkasaurus is a new genus and species of medium-sized abelisaurid theropod dinosaur. Tralkasaurus cuyi has been discovered by Dr. Mauricio Cerroni from the Argentine Museum of Natural Sciences and CONICET and his colleagues.
Tralkasaurus cuyi lived approximately 90 million years ago in what is now Patagonia, Argentina. It belongs to Abelisauridae, a group of ceratosaurian theropod dinosaurs that thrived during the Cretaceous period on the supercontinent Gondwana.
The incomplete fossilized skeleton of Tralkasaurus cuyi, including a jaw and vertebra, were discovered at the Violante Farm fossil site in Río Negro province, northern Patagonia.