Deinonychus antirrhopus T-Shirt

Deinonychus remains were first discovered by Barnum Brown in 1931 near Billings, Montana; however, because it’s remains were encased in Lime and thus difficult to prepare Brown payed more attention to the remains of a large plant eater that was found nearby. It wasn’t until many decades later that John Ostrom recognized that the remains Brown had discovered belonged to an animal he had described in 1969 as Deinonychus antirrhopus. Deinonychus was a member of a group called Dromaeosaurids, who were defined by being swift moving predators with stiff tails, sharp sickle-like claws on their feet, they came in many sizes, from as small as a 2 feet in length to animals like Utahraptor reaching lengths of up to 36 feet.