THE CROSS FELL INLIEK. 509 



district, forminu^ a groat part of the subsidiary inlicr which has 

 been already noticed as furnisliing representatives of the Eycott 

 volcanic rocks. These basic rocks are faulted against the rhyolitic 

 lavas and ashes of Shield Green, cast of ]\lelmcrby. Above the 

 highest lava is an ash apparently unfossiliferous, and the possible 

 e(]uivalents of the " Corona-beds " succeed it in the form of green 

 ashy fossiliferous shales, which are exposed on a fell-road leading 

 out of the Alston Moor road. These however, may belong to a 

 somewhat lower horizon. They contain the following fossils : — 



Prasopora Grayce^ Nich. & Eth. Jun. 

 Amphion pau2^er, Salt. (?). 

 Cyphaspis mer/aJojos, M'Coy (?). 

 Trinucleus Goldfassi, Barr. (?). 

 Orthis testudinaria^ Dalm. 



Above these calcareous ashes are greatly- disturbed calcareous 

 ashy shales, which belong either to the " C'oro>?«-beds " or to the 

 base of the Dufton Shales. They are seen on the high road, and 

 have yielded : — • 



Prasopora Grayce^ Nich. & Eth. Jun. 



Callopora pillula, Nich. & Eth. Jun. 



Di])lograptus sp. 



Agnostus sp. 



Trinucleus seticornis, His. (?). 



Lingula tenuigraniddia, M'Coy. 



Orthis eleganttda, var. (?), Dalm. 



p>licata, Sow. 



Trijjlesia (?) spiriferoides. 

 Strophomena rJiomboidalis, Wilckens. 



Above and beyond, these are representatives of the Stockdale 

 Shales. 



One more subsidiary inlier north of this shows the highest 

 Lower Palseozoic beds seen in this district. These are the Coniston 

 Grits which are seen dipping in a southerly direction in Limekiln 

 Beck. A specimen of these grits has been long exhibited in the 

 Museum of Practical Geology, and the deposit has been recognized 

 by the officers of the Geological Survey as belonging to the Coniston 

 Grit Series. 



§ lY. Ages of the diefeeent Membees of the Coniston 

 Limestone Series. 



We have already compared the earlier and later accumulations of 

 the Cross Fell area with their equivalents in the main part of 

 the English Lake District, and we need only add a few words con- 

 cerning the rocks which lie between the rhyohtes and the Stock- 

 dale Shales, for these are more fully developed here than in other 

 parts of the North of England. 



