 I. anglicus was the original type species , but the holotype was based on a single tooth and only partial remains of the species have been recovered since . In March 2000 , the International Commission on Zoological Nomenclature changed the type species to the much better known I. bernissartensis , with the new holotype being <unk> 1534 . The original Iguanodon tooth is held at Te Papa <unk> , the national museum of New Zealand in Wellington , although it is not on display . The fossil arrived in New Zealand following the move of Gideon Mantell 's son Walter there ; after the elder Mantell 's death , his fossils went to Walter . 
