 | A nine-ton block of sandstone that was pulled from a Utah mountain late last year holds the biggest fossil trove ever found of the giant predatory dinosaur known as Utahraptor. Covered in feathers, with a huge sickle claw on each second toe, Utahraptor looked like a pumped-up version of the Jurassic Park star Velociraptor. All the Utahraptor fossils are contained within a large blob of sandstone that appears to have once been what geologists call a "dewatering feature," or in common terms, "quicksand". |  |  |
 | The Utahraptor was the largest of a group of lightly-built carnivores, called the dromaeosaurs ('swift lizards'). It had large eyes, long grasping hands and powerfully clawed feet. Clearly it was carnivorous, but was distinctive in relying on a wickedly hooked, slashing claw on each foot rather than the jaws and teeth of a typical predator. Its toe joints were specially enlarged so that its massive claw could be raised upward and backward to avoid damage while running. |  The dromaeosaur group also included Velociraptor, made famous by Steven Spielberg in 'Jurassic Park'. |
 | Other bones at the site belong to a beaked, bipedal herbivore called an iguanodont. The remains of these dinosaurs may have been what attracted the Utahraptor group to the site in the first place. |  |
http://news.nationalgeographic.com/news/2015/01/150106-utahraptor-death-trap-fossil/
