Vol. 67.] 



WEST, MID, AND EAST SOMERSET. 



29 



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s 





a 













H 











5J 





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O 









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Oh 





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w 



3 



H 



-«) 



Ph 



W 



Ph 





u> 



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L 



[Lilstock.] Thickness in feet inches. 



Cotham- Marble equivalent. A" 



1. 



Y 



Chi 



(. II 



splintery, brownish - grey lime- 

 stone : to 6 inches 



fMarls, non-laminated above, more 

 so below. In places, at 18 inches 

 below the Cotham Marble, 

 hard, grey, sandy tine - grained L 

 limestone, and above it occur 

 several thin brown layers. The 

 topmost portion of all is conspicu- 

 ously streaked brownish-yellow ... 



Limestone, grey, fissile and rather ^ 

 sandy, not always conspicuous, Iq 

 but in places harder and non- t 

 fissile ) 



Marls, bluish -grey, with a few^j 

 not veiy conspicuous sandstone £, 

 layers. More indurated in a zone f 

 at the top 



Limestone, grey and yellow, sandy,' 

 ith a little yellowish marly 

 matter intervening 



y',1 



4 Fish-scales (fragments). 



11 



ft 

 m 



C Shales, black, with gypseous aggre- 

 '/,\ \ gations. At the top (for 2 or 3. , 

 ^ '1 inches) these shales are more 



L marly 



C Limestone, grey, which (together") 

 (2) < with a large amount of ' beef ') > 



(_ makes up a hard zone ) 



f Shales, black, laminated. At the^ 



I top (2 inches therefrom) are two I 



(3)<J hard-looking layers ; but these, )>2 



I on closer inspection, are found to j 



[_ be bound together by selenite ...J 



fLimestone, blackish-grey, earthy,^ 



5 & I in three beds with shale-partings ; | 



6 <j sometimes in two when the shale- }~1 



7. I parting is thicker. On the top is a | 



[_ fairly regular lay er of ' beef J 



(Shales, black, laminated, with two^ 



8. < layers of ' beef ' (conjoined) 40 > 6 

 (_ inches from the base about ) 



C Limestone, pale grey, usually hard ~} 



9. < and often nodular in appearance ; > 

 (. ' beef ' on the upper surface ) 



10. Shales, black 6 



11. Sandstone, grey, calcareous 



12. Shales, black 



Limestone, dark grey, although^) 



conspicuous in some places it thins 



13. <J out in others to a thin brown soft j>0 



I seam, barely an inch thick : 1 to 



^ 5 inches J 



Shales, black, laminated 1 



Bone-Bed. Sandstone, very hard,^ 

 grey, slightly pyritic, and mica- (~ 

 ceous at the base, becoming more C 



of a limestone above J 



f Shales, black, thinly laminated, be- ~) 

 < coming greenish-speckled : 26 to > 2 

 (. 32 inches J 



14. 



15. 



16. 



Pteria contorta(? oxtlock). 



. C Chlamys valoniensit 

 * I (Defrance). 



6 Protocardia rhcetica. 



f Chlamys valoniensis, 

 \ Pteria contorta abun- 

 1 dant in the shale-layers j 

 V. Gyrolepis alberti Ag. 



Usual Rhaetic fossils. 



10 







0| 



4 



3 Gyrolepis alberti. 



f Gyrolepis alberti, Hyb- 

 j odus minor Ag., copro- 

 lites, small quartz- 

 pebbles, and Isocyprina- 

 casts. 



