A 2014 paper has identified a new species of top predator from Europe. In 2003, an amateur paleontologist discovered part of a dinosaur jawbone in sediments near Lourinha, Portugal.
The fearsome creature had huge bladelike teeth and an elongated snout.
The jawbone, shown here in a skull reconstruction was originally though to belong to Torvosaurus tanneri a predator found in North America.
But Christophe Hendrickx and Octavio Mateus, researchers at the Universade Nova de Lisboa, took a closer look and determined it was a new species.
The Torvosaurus gurneyi was likely a top land-based predator in its day, and may have hunted large herbivores.
The Torvosaurus was one of the biggest land predators, and could reach 33 feet (10 meters) and weigh 4 to 5 tons.
Still, it was slightly smaller than Tyrannosaurus rex, the king of the predators.