2 KANSAS UNIVERSITY QUARTERLY. 



The remains, meagre as they are, are of great interest, because they 

 represent the oldest marine Cretaceous fauna of America thus far 

 discovered. 



FISHES. 



A single vertebra of a form similar to that of the vertebrae of 

 Porthcus and which may be provisionally referred to that genus, has 

 the following measurements. 



Diameter 42 mm. 



Length 25 " 



Depth of cup 10 " 



The sides have been so affected by the action of lime sulphate that 

 I can not make out any markings. They are only slightly concave. 

 Another vertebra, belonging to an entirely distinct type, resembles 

 equally the vertebras of a genus from the Kansas Niobrara. There 

 is, however, in the middle an opening, as though for a persistent 

 notochord. Its measurements are as follows: 



Diameter 25 mm. 



Length 10 " 



Diameter of opening 8 " 



The centrum, as is seen, is very flat, and the cup shallow. The 

 sides are markedly constricted, and have numerous, prominent, lon- 

 gitudinal ridges. 



A single tooth agrees closely, both in form and size with Lamna 

 occidentalis Leidy. 



TURTLE. 



Turtles are represented by a single bone, the scapula-precoracoid 

 of a species as large as Proiostcga. It differs very materially from 

 the scapula of any turtle known to me in the great length of the 

 humeral extremity. The other extremities are rather slender, and 

 m..et in a very obtuse angle. 



PLESIOSAURS. 



Of the plesiosauroid remains there are eight or ten vertebrae, 

 and various other bones, many of which are in poor preservation. 

 They all appear to belong to one type, which I cannot distinguish 

 from Ciiiioliosaunts in its narrowest sense. It is of course not 

 certain that they all belong to this genus, and it is not improbable 

 that there are distinct species represented by them. A single well- 

 preserved, cervical vertebra will admit of specific description, as 

 follows: 

 Cimoliosaurus, n. sp. (PI I, fig's. 1 and 2). 



Centrum of cervical vertebra broader than high, with a single- 

 headed rib or parapophysis, firmly united, springing from near the 



