 I. valdensis , a renaming of <unk> valdensis by Ernst van den <unk> in 1900 . Originally named <unk> valdensis by Hulke in 1879 based on <unk> and pelvic remains , it was from the Barremian stage of the Isle of Wight . It was considered a juvenile specimen of Mantellisaurus atherfieldensis , or an undetermined species of Mantellisaurus , but is indeterminate beyond Iguanodontia . 
