REPTILIA. 
23 
Subsequent discoveries, exhibited in Wall-cases 6, 6a, 7, Wall-cases 
prove that Mantell was misled in several respects, because 6 > 6a » 7 - 
Iguanodon is not in any way closely related to the existing 
lizards; and a few nearly complete skeletons discovered in 
the Wealden of Bernissart, near Mons, Belgium, now in the 
Brussels Museum, show all the principal features of the 
animal (Fig. 18). These skeletons were found at Bernissart 
under circumstances which suggest that the individuals they 
represent met their death by accident in a deep ravine. An 
exact plaster copy of one of them is placed on Stand 0, and Stand O. 
its height as mounted is about 14 feet, while its total length 
Big. 18. —Skeleton of an Ornithopodous Dinosaur (Iguanodon bernissart- 
ensis), from the Wealden of Bernissart, Belgium, as mounted in the 
Brussels Museum • about one-eightieth nat. size. (Stand 0.) 
is approximately 25 feet. The large laterally-compressed 
head (Fig. 19) ends in front in a toothless beak, of which the 
lower half is supported by a separate “ predentary bone.” 
The fore limbs are comparatively small, with slender shoulder 
blades; and each hand comprises five fingers, though the 
first of these (or thumb) is reduced to a bony spur, which, 
when originally found isolated, was supposed by Mantell to 
have been a horn on the nose. The hip-bones (pelvis) much 
resemble those of an ostrich in arrangement, but are not 
fused together as in the Batite running birds, while a great 
pubic bone represents a mere knob in the latter. There are 
