Antediluvian Zoology. 367 
in the size of the fossil animal, which is of gigantic propor- 
tions. It is concluded that, if an amphibious, it was not a 
marine reptile, but the inhabitant of rivers and fresh-water 
lakes. ‘The same animal may be traced, in its enormous frag- 
ments, on the eastern and western sides of the Isle of Wight, 
and in the Isle of Purbeck, mingled with the remains of coe oO 
species of crocodile and the Megalosatirus. We have figured 
several illustrations of the teeth of Iguanodon in p.14. fig. 14. 
In Yorkshire, the teeth and vertebrae of saurian animals were 
noticed by Mr. J. Phillips in the gault or Speeton clay, Oxford 
clay, Bath oolite, and abundantly in the lias shale. 
Vertebree and teeth of Ichthyosatirus, Plesiosatirus, and 
Crocodile, occur in the old diluvium of Norfolk. 
Pterodactylus, or winged lizard, one of the most extraordi- 
nary pr oductions of the fossil w orld, is an animal which forms 
the intermediate link, hitherto deemed to exist only in fable, 
between birds and reptiles. 
This creature, previously known in two formations upon 
the Continent, has been recently recognised in the lias of 
Dorsetshire. 
We cannot resist the temptation to introduce this remark- 
able animal in the language of Professor Buckland : 
“In size and general form, and in the disposition and 
character of its wings, this fossil genus, according to Cuvier, 
somewhat resembled our modern bats and vampyres, but had 
its beak elongated, like the bill of a woodcock, and armed with 
teeth, like the snout of a crocodile; its vertebrze, ribs, pelvis, 
legs, and feet, resembled those of a lizard; its three anterior 
fingers terminated in long hooked claws, like that on the fore- 
finger of the bat; and over its body was a covering, neither 
composed of feathers, as in the bird, nor of hair, as in the bat, 
but of scaly armour, like that of an iguana: in short, a mon- 
ster, resembling nothing that has ever been seen or heard of 
upon earth, excepting the dr agons of romance and heraldry. 
Moreover, it was probably noctiy agous and insectivorous, and 
in both these points resembled the bat ; but differed from it, in 
having the most important bones in its body constructed after 
the manner of those of reptiles. With flocks of such like 
creatures flying in the air, and shoals ue no less monstrous 
Ichthyosatri and Plesiosatiri swarming in the ccean, and 
gigantic crocodiles and tortoises Elid on athe shores of the 
primeval lakes and rivers, —air, sea, and land must have 
been strangely tenanted in those early periods of our infant 
world.” 
Testudines. — Traces of tortoises (Trionyx) are first ob- 
served in the bituminous schist of the north of Scotland, the 
BB 4 
