10 



DR. J. E. 3IAEE OS THE LOWER 



[March 1 91 3, 



The Phacojjs-robertsi Beds are well exposed in Wraymire Gill, 

 immediately before it joins Taythes Gill, and are here fairly 

 fossiliferons. Hence they strike westwards to a point in Taythes 

 Gill above a footbridge on the west side of Fairy Gill, and 

 eastwards into Splinter Gill, where they are again seen. In all 

 these localities they are very fossiliferous, and the following 

 forms have been found : — 



Dicellograplus anceps. 2, 3. 

 Glyptograptus perscnlptus. 3. 

 Arupyx. 3. 



Trinncleus seticomis (?). 1, 2, J 

 Dionide euglypta Barr. ? 2. 

 Bemopleurides (Caphyra) sp. 1. 



3 (very common). 

 Illcenus. 2. 

 IAchas. 3. 



1,2, 



Phacops robertsi. 1, 2, 3 (very 



common). 

 Phacops apiculatus (!). 2. 

 Phacops cf. downingm. 2. 

 Turrilepas. 1 . 

 Lingula. 2. 

 Orthis. 1, 2, 3. 

 Leptcena. 2. 

 Conularia, 1 . 



1 = Wraymire Gill ; 2 = Taythes Gill, west of Fairy Gill; 3 = Splinter Gill. 



No Staurocephalus Beds or Ashgill Shales are seen in the upper 

 part of Taythes Gill, where the Calymene Beds are faulted against 

 Stockdale Shales : nor in Wraymire and Splinter Gills, the heads of 

 which are filled with drift. Drift also covers the lower part of 



Fig. 2. — Plan of streams at Taythes, on the scale of 6 inches 

 to the mile. 



W 



7' 





' T-i 



A = Ashgill Shales. 



P =Phacops-robe?'tsi Beds. 



C= Calymene Beds. 



>£/# 



F = Felsite. [The letters A, P, C are placed 



T=Taythes House. alongside arrows showing 



localities where fossils were 



found.] 



Fairy Gill, and doubtless conceals the Staurocephalus Beds : for the 

 well-known sections of Ashgill Shales of Fairy Gill are dipping 

 away from the Phacops-roberisi Beds which are above described. 

 Hence no continuous section of Ashgillian strata, like that found 

 in Backside Beck, has been detected in Taythes Gill. 



