“This is by far the biggest claw preserved for a dinosaur that has that keratinous sheath on it.”The dinosaur has been given the scientific name Duonychus tsogtbaatari, in honor of Mongolian ...

“This is by far the biggest claw preserved for a dinosaur that has that keratinous sheath on it,” Zelenitsky said. The strong curve and high flexion of the claw point to a powerful gras ...