1. Education



The partial skeleton of Tyrannotitan was discovered in 2005 in South America, and it's still being analyzed. For now, suffice it to say that it appears to have been one of the biggest theropods ever to roam the planet, closely related to its fellow giants Carcharodontosaurus and Giganotosaurus. More about Tyrannotitan

Tyrannotitan (Wikimedia Commons)

©2014 About.com. All rights reserved.