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NOTES ON SOME CARBONIFEROUS GASTEROPODA 

 FROM PENTON AND ELSEWHERE. 



By Miss DONALD, Stanwix, Carlisle. 



The fossils about to be described were mostly obtained from a bed 

 of calcareous shale, belonging to the Calciferous Sandstone Series, 

 at Penton, on the Border about fifteen miles north-east of Carlisle. 



Associated with the Gasteropoda are representatives of the 

 Actinozoa, Crinoidea, Annelida, Ostracoda, Trilpbita, Polyzoa, 

 Brachiopoda, LamelHbranchiata, Heteropoda, and Cephalopoda. 

 Remains of fish also occur, and I have obtained a specimen of their 

 palatal teeth, as well as part of the lower jaw of Megalichthys. The 

 fossils are crowded together on the bedding faces of the shales, 

 but few or none of them appear to be much worn, and they are 

 often so little disturbed that specimens of Encrinites and similar 

 fossils are occasionally found almost entire. It would therefore 

 appear that the strata where these fossils occur represent the result 

 of quiet deposition in the waters of the sea, at least at some distance 

 from land, if not actually in comparatively-deep water. 



Some of the other fossils described were obtained from an 

 ochraceous bed whose present condition results from the partial 

 decomposition of a bed of impure ferruginous limestone. This 

 occurs near Mosedale, on the north slopes of VViddle Fell, just 

 beyond the county boundary of Westmorland, and about a mile to 

 the south-east of Hawes Junction, on the Midland Railway. Mr. 

 Goodchild informs me that this bed represents the equivalent of 

 what is known as the Three Yard Limestone in the Yoredale 



