The skeleton of a Stegosaurus, named "Apex," has officially taken the title of the most expensive fossil ever sold, with a confirmed final bid price of $44.6 million, according to Sotheby's ...

The 150 million year old Stegosaurus stenops is the most significant dinosaur the Museum has acquired since the 1980s and the only Stegosaurus in a public collection outside the USA. It will take ...

Apex is likely the largest stegosaurus ever discovered, researchers announced, and Benson said that of all his research goals, he's most excited to figure out exactly how old it lived to be.