April 6, 2021 Around 80 million years ago, as tyrannosaurs ruled the Northern Hemisphere, Llukalkan aliocranianus – or the ‘one who causes fear’ – flourished in the southern continents. Paleontologists in Argentina have described a newly discovered species of dinosaur – named Llukalkan aliocranianus, or ‘one who causes fear’ – in a study published March 31, 2021, in the peer-reviewed Journal of Vertebrate Paleontology. Around 80 million years ago, as tyrannosaurs ruled the Northern Hemisphere, this lookalike carnivore flourished in the southern continents. The fearsome predator could be as long as an elephant, had extremely powerful bites, very sharp teeth, and huge claws in their feet, the scientists reported. Researchers unearthed the fossil remains – including an extremely well-preserved and intact braincase – in the Bajo de la Carpa Formation in Argentina, in 2015.