A rare stegosaurian skull discovery in Spain redefines dinosaur evolution and unveils a new group, Neostegosauria.

The stegosaurus was one of the world's most distinctive dinosaurs, featuring pointy plates on its back. Hatton has called Apex “a coloring book dinosaur,” for its well-preserved features.

The stegosaurus was one of the world's most distinctive dinosaurs, featuring pointy plates on its back. Hatton has called Apex “a coloring book dinosaur,” for its well-preserved features.

The 150-million-year-old specimen is valued at up to $6 million by Sotheby’s. Some paleontologists worry this auction and ...

Believed to be the most complete Stegosaurus dinosaur fossil, the 70% complete, 11-foot-tall, 20-foot-wide "Apex" sold for millions at auction.

One dinosaur, however, stands out from the Jurassic crowd as being one of the most famous and well represented dinosaurs, full stop. Stegosaurus. The name alone should invoke a strong image of a ...