it might have been a sauropod. The first to state that it was a stegosaurian in the modern sense was George Olshevsky in 1993. This was confirmed by Paul Barrett and Paul Upchurch in 1995 who concluded that it is a stegosaur similar to Huayangosaurus, as the jaws are very similar. As the remains are so limited, many recent researchers have concluded Regnosaurus to be a nomen dubium. See also Timeline of stegosaur research References Stegosaurs Barremian life Hauterivian life Valanginian life Early Cretaceous dinosaurs of Europe Cretaceous England Fossils of England Fossil taxa described in 1848 Taxa named by Gideon Mantell Nomina dubia Ornithischian genera