Uphill Railway-cutting, Bristol and Exeter Line. 



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LlTHOLOGICAL CHARACTERS 



and thickness. 



Alternate beds of light-coloured 

 Lias limestones and shales, 

 much fractured and disturbed 

 to an angle of 40°. 10 feet. 



Dark-greyish laminated shales 

 interstratified with thin bands 

 of limestone, and beds of clay, 

 thickness 14 feet. 



Bands of limestone, 6 inches. 



Do. of shale, 3 feet 6 inches. 



Do. of limestone, 4 inches. 



Do. shale, 3 feet. 

 Succeeded by 12-14 beds of 

 limestone and shales, 12 feet. 



A thin band of dark grit, 1£ 

 inches, resting upon dark-grey 

 shaly marl, 4 feet 6 inches. 



Dingy-coloured pyritic lime- 

 stone, many shells, 2 inches. 



Grey marl, 2 inches, resting on 

 a band of limestone with 

 shells and gypsum, 2 inches, 

 and dark marl, 4 feet. 



Dark shelly pyritic limestone, 

 6 inches. 



Dark marls, 3 feet. 

 Laminated Shale, 3 inches. 

 Dark marl, 1 foot 9 inches. 

 Stony band of impure limestone, 

 3 inches. 



Dark pyritic conglomerate ; 

 coprolites' teeth, and scales 

 of Fishes, 2 inches thick. 



Dark shaly marl, 3 feet G inches. 

 Dark stony band, 8 inches. 

 Dark indurated marl, 2 feet. 

 Band of limestone, 6 inches. 

 Dark indurated marl, resting on 



a pebbly conglomerate, 3 feet 



6 inches. 



Beds. 



The Angulatum 

 Series. 



Planorbis 

 Series. 



Ostrea 

 Series. 



Dark Grit. 



Black Shales. 



Upper 



Pecten-bed. 



Grey Marl with 

 Gypsum. 



Lower 

 Pecten-bed. 



Lower Dark 



Marls and 



Shales. 



Bone-bed. 



Lower 

 Black Shales. 



Organic Remains. 



Fragments of Aegoceras angu- 

 latum and Aeg. liassicum. 



Aegoceras planorbis, much com- 

 pressed between the shaly 

 laminae, the white outer layer 

 of the shells is well preserved. 



Modiola minima, Ostrea liassica, 

 Pleuromya Crowcombeia, As- 

 tarte obsoleta. 



These fossils were found spar- 

 ingly on the surface of the 

 slabs. 



Teeth and Scales of Fishes. 



Fossils rare. 



Pecten Valoniensis. 

 Cardium Rhoeticum. 



Avicula contorta. 

 Cardium Rhceticum. 

 Axinus cloacinus. 



Pecten Valoniensis. 

 Avicula contorta. 

 Isodonta prcecursor. 



Many small shells in compressed 

 seams lie within the laminae 

 of the shales, as Pullastra, 

 Axinus, and Avicula contorta. 



Teeth and scales of Fishes. 

 Saurichthys, Hybodus, Gyro- 

 lepis. 



These black shales are not 

 fossiliferous. 



