MONOGRAPH 



ON 



THE FOSSIL REPTILIA 



OF THE 



CRETACEOUS FORMATIONS. 



PART I. 



Pages 1—118 ; Plates I— XXXVII, with VIIa and IXa. 



CHELONIA (Lacertilia, &c.). 



BT 



PROFESSOR OWEN, D.C.L., F.R.S., F.L.S., F.G.S., &c. 



Ismed in the Volume for the Year 1851. 



LONDON : 

 FEINTED FOR THE P AL^ O NT G R APH IC AL SOCIETY. 



1851. 



