Researchers have discovered two new species in a 125-million-year-old fossil in China. While they’d be wiped out by a T-Rex ...

A University of Calgary paleontologist is part of a discovery of a new species of dinosaur with 30-centimetre-long claws found in a Mongolian desert. Darla Zelenitsky, an associate professor in ...

Photograph by Kobayashi, et, al Dinosaur claws were made of bone covered in keratin sheaths, the same biological component as our fingernails. The hands of Duonychus showed that the keratin part ...

While they were part of the dinosaur clade called theropods that included all the meat-eaters such as Tyrannosaurus and Spinosaurus, therizinosaurs preferred plants on their menu. Therizinosaurs ...

One of the dinosaur’s claws was unearthed with its keratinous sheath still preserved. Duonychus tsogtbaatari was part of an awkward-looking group of dinosaurs known as therizinosaurs ...

The fossil set included both of the dinosaur's arms, including claws, part of its pelvis and much of its backbone, and they are three-dimensional, not flat outlines in rock. The fossils date to ...

The 2005 finding of cells and blood vessels in dinosaur bone launched a systematic search for fossil remnants of biomolecules, creating innovations in methods and applications. Jasmina Wiemann is ...