For more than a century, paleontologists have been piecing together how the mysterious predator Andrewsarchus is related to ...

The dinosaur—likened to a "hell heron"—is believed to have had a bright-colored crest sheathed in keratin atop its head.

The unique size and shape of the bones from Spinosaurus mirabilis — the first Spinosaurus species discovered in over a ...

A rare dinosaur fossil on display at the Museum of the Rockies in Bozeman, Montana, tells a gory story. The skull from a ...