Spinosaurus, the only known semiaquatic dinosaur predator, joins Tyrannosaurus, Giganotosaurus and Carcharodontosaurus among the largest meat-eating dinosaurs.

Dinosaur fossils have been discovered on every continent, with remains found in 51 countries around the globe. While Argentina in South America is renowned for its enormous dinosaurs, the United ...

For more than a century, the largest dinosaurs have seemed like a closed club dominated by a few famous sauropods with necks as long as city buses. Now a neglected set of bones is forcing ...

TAMPA, Florida — About 150 million years ago, a giant, long-necked dinosaur stomped on the ground in the Midwestern US state of Wyoming and left behind what researchers said on Tuesday is the largest ...