SAUROPTERYGIA. 23 



'Geology of Oxford.' It will be necessary to wail for further information 

 before admitting this into the known Oornbrash fauna. 



Steneosaurus stephani. — The specimen on which this record is rounded was 

 obtained from a quarry at Closeworth, in Dorsetshire. It is now in the British 

 Museum, where it is labelled as from the Oornbrash and catalogued as such 

 by Mr. Lydekker (Pt. f, p. 1 1 !•). lint the matrix does not resemble the ordinary 

 Oornbrash in that district. On inquiry of the discoverer of the fossil, the 

 late Mr. Mansel-IMevdell, he kindly informed me that the specimen was extracted 

 by the fossil-collector, Mr. Reynolds, who gave him the following account of 

 the quarry, now grassed over, in which it was found. 



Ft. in. 

 Corn brash . .04-9 



Earthy matter . .20 



Rubbly ragstone . .10 



Solid, dark, cream-coloured beds 3 6 



It was in this last bed that the steueosaur lay, and the matrix of the fossil 

 corresponds with the description. The three overlying beds also correspond to the 

 usual Oornbrash, and a considerable thickness of stone similar to the fourth bed is 

 seen on the opposite side of the valley near Yetminster, underlying the Oornbrash. 

 I conclude, therefore, that the fossil in question was not obtained from the 

 Oornbrash as here restricted. A steneosaurian vertebra, in the Sherborne Museum, 

 found at Stalbridge Weston, and included amongst Oornbrash fossils, is in the same 

 position as this — its horizon is doubtful. (See locality 5, Holwell.) 



Teleosaurus subulidens. —This entry is founded on the following extract from 

 Phillips' 'Geology of Oxford,' p. 244: "Teleosaurus subulidens Phil. G. O. 

 Enslow Bridge, Kirklington Station Quarries, 0. 13. Kidlington." However, on 

 p. 184 of the same volume it is stated that teleosaurian teeth were found in the 

 Great Oolite at Kidlington, but nothing is said about Oornbrash. None are found 

 so labelled in the Oxford Museum, but the lower part of the quarry at Kidlington 

 is composed of beds below the Oornbrash, which contain reptilian bones (see 

 locality 23). On these grounds it is not safe to assume that the crocodile known 

 under the above name survived into Oornbrash times. 



From this it would appear that there is no available evidence that any one of 

 the reptiles hitherto recorded belong to the Oornbrash. 



Order SAUROPTERYGIA. 



Family Plesiosaurid^;. 

 Liopleurodon ferox, Sauvage. Plate I, figs. 1, 2. 



1873. Liopleurodon ferox, Sauvage, Bull. Soe. Geol. France [3J, vol. i, p. 378, pi. vii, tig. 1. 

 1880. Polyjatychodon ferox, Sauvage, loe. cit., vol. viii, p. 544. 



