Paleontologist Steven Jasinski of the University of Pennsylvania has described a new species of dromaeosaurid dinosaur that roamed what is now New Mexico during the Upper Cretaceous epoch, approximately 75 million years ago. Two individuals of Saurornitholestes sullivani attack a subadult hadrosaur Parasaurolophus tubicen. Image credit: Mary P. Williams. Jasinski named the new species Saurornitholestes sullivani – after paleontologist Robert...