Valdosaurus is a genus of bipedal herbivorous iguanodont ornithopod dinosaur found on the Isle of Wight and elsewhere in England, Spain and possibly also Romania. It lived during the Early Cretaceous.
Valdosaurus sp. ilia, NHM 2150, from the Upper Tunbridge Wells Sand of Cuckfield
Restoration of Valdosaurus (lower left) with contemporary dinosaurs
Hypsilophodon is a neornithischian dinosaur genus from the Early Cretaceous period of England. It has traditionally been considered an early member of the group Ornithopoda, but recent research has put this into question.
Hypsilophodon
Illustration of the complete Mantell-Bowerbank block. Mantell had received the bottom half, and Bowerbank the top.
Fox's skull, the holotype NHMUK PV R 197
Palaeontologist Thomas H. Huxley, who named Hypsilophodon