Keywords: Horn of Iguanodon.jpg The original thumb spike referred to as the 'Horn of the Iguanodon' by Gideon Mantell Oriignal caption by Owen Ungual phalanges of modified shape probably from the extreme toe outer or inner of the hind foot of the Iguanodon Figs 1 and 2 are of the specimen called 'Horn of the Iguanodon' in the Works and Catalogue of Dr Mantell From the Wealden Sussex In the British Museum http //www lib utexas edu/books/britfossils/html/txu-oclc-13370987-2-dinosauria-plate22 php s 1850 Jos Dinkel PD-old Mantellodon |