MONOGRAPH 



FOSSIL REPTILIA 



THE WEALDEN FORMATIONS. 



Order— DINOSA TIBIA? 



(Cervical and anterior dorsal vertebra? with parapophyses and diapophyses ; 

 dorsal vertebrae with a neural platform ; sacral vertebrae exceeding two in number : 

 body supported on four well- developed unguiculate limbs.) 



Genus — Iguanodon. 



Denies incrassati, marginibus lammellosis. 



In a former Monograph ' On the Fossil Reptilia of the Cretaceous Formations,' 

 4to, 1851 ; p. 105, the vertebral characters of the dorsal and caudal regions of the 

 spine of the Iguanodon were described and figured, as they were exhibited in the 

 instructive specimen obtained by Mr. W. H. Bensted, from a Green Sand formation 

 near Maidstone ; in the present Monograph it is proposed to illustrate the characters 

 of the rest of the skeleton, so far as undoubted parts of it have been obtained from the 

 Wealden Strata, in which the first evidences of the Iguanodon were discovered by 

 Dr. Mantell, and from which the most abundant and varied remains of this remarkable 

 herbivorous reptile have since been obtained. 



* Report on British Fossil Reptiles, 1841, in 'Trans. Brit. Association,' 8vo, 1842, p. 102. Pictet, 

 'Traite El6mentaire de Palseontologie,' 8vo, torn, ii, 1845, p. 52. From the Greek tewos, fearfully great; 

 oavpos, a lizard. 



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