4o8 JOURNAL OF CONCHOLOGY. 



NOTE ON SOME MOLLUSCAN REMAINS LATELY 

 DISCOVERED IN THE ENGLISH KEUPER. 



By R. BULLEN NEWTON, F.G.S. 



(Read at the. British Association, Nottingham Meeting, 1893, and before 

 the Conchologlcal Society, 3rd Jan., 1894). 



The green gritty marls of the Upper Keuper Sandstone of 

 Shrewley, Warwickshire, have recently yielded some obscure 

 impressions of Lamellibranch shells, which are of extreme in- 

 terest as affording the first evidence of a molluscan fauna 

 from these beds as developed in this country. Unfortunately, 

 the matrix containing them is so peculiarly unfavourable for the 

 retention of shell structure that it is very unlikely any better 

 material than the present will ever be obtained. The specimens 

 indicate truly marine types, though on account of their imperfect 

 preservation only a few of them could be selected for descrip- 

 tion, as exhibiting certain characters in their contours and 

 sculpturing, which might be of service in ascertaining their 

 probable generic positions. So sparingly are fossils found in 

 this division of the British Trias that up to the present time 

 only one form of invertebrate has been recorded, viz., the 

 small phyllopodous crustacean, Estheria ininuta ; that is, ex- 

 cluding some Foraminifera described by Professor T. R. Jones 

 and Mr. W. K. Parker,^ which came from an alabaster pit, near 

 Derby, and which were doubtfully referred by the authors to an 

 Upper Triassic age. The very modern facies of these Foramini- 

 fera has suggested the highly probable idea that they were 

 derived from superficial deposits.- Scattered through the matrix 

 containing the Lamellibranch impressions are portions of 



i ' On some Fossil Foraminifera from Chellaston, near Derby,' — Quart. Journ. Geol. 



Soc, i860, vol. 16, pis. 19 — 20, pp. 452 — 458. 

 - I'idc ' The Geology of England and Wales,' by H. B. Woodward, 1S87, and ed., p. 228. 



J.C., vii., July 1894. 



