ON EXCAVATIONS IN THE PALAEOZOIC ROCKS OF WALES, ETC. 121 



Vertical Section of the Cambrian Strata of Comley, Shropshire, from observations 

 made during the Excavations of 1907, 1908, 1909. 



Local names used iu Thickness 

 the Reports in feet 



6hoot Hough Wood 

 Shales, 



? 



Li'tgulella Nicltolsoni 

 Dic'yonema,sp. 



Interval Unexplored. 



Trcmadoo ? 



Bhoot Rough Road 

 Shales, 



' Shoot Rough Road 

 Flags. 



Shoot Bough Road 

 Sandstone. 



300? 

 to 



500? 



18 



\ 



Or/his tenlkularis. 



Orlhis Lindstroemi, Acrotreta socialis, 

 Lingnlella ferruginea Obolella ? 



Agnostus fa/lax, Paradoxides davidls, 

 Agraulos, Microdiscus, &c. 



Paradoxides rugulosus. 



Interval Unexplored. 



oj Hill House Shales 

 g Hill House Grits 

 •g Hill House Flags 



Quarry Ridge Grits . 

 Black and Grey Lime- 

 stones 

 Olenellus Limestones 



Lower Coniley Sand- 

 j_ stone 



Wrekin Quartzite 



Uriconiau . 



? 



30 

 ? 



a 



o Quarry Ridge Shales 300 ? 



22 

 5 



300? 

 to 



400? 



100? 



;*•<"':••'; "»*vV- 



Plychopaiia.' 

 Dorypyge. 



Paradoxides Grootnii, Dorypyge, *c. 

 ( Protolenus, Sirenuella, Anomocart, 

 \ Microdiscus lobalus, &c, 



Olenellus Callavei,&c. 



Olenellus, sp., Ilyolithus. 



HyolUhus, sp., near II. tenuislriata. 



Callavei Lapw. and below the unconformity at the base of the Para- 

 doxides beds there are some bands of grey limestone, the upper member 

 of which has yielded species of the genus Protolenus accompanied by 

 other trilobites, some of which are members of the Olenellus fauna in 

 America. 



5. The Black Limestone of Comley Quarry occurs above the band 



