Vol. 67.] 



WEST, MID, AND EAST SOMERSET. 



17 



[Blue Anchor Point.] 

 q ( Limestone, very 



* i slightly pyvitic 



f Shales, black, laminated 



Thickness in feet 

 hard, crystalline, ) ~ 



inches. 

 6 Fish-scales. 



?10 I 

 to-j 

 12 



1ZA 



14. 



15. 



^0 



17. 



18. 



19. 



20. 



21. 



23. 



21. 



25. 



26. 



^0 



Foreshore Section near the 

 First Gypsum-Workings. 



Shales, black 



Pleurophorus Bed. The Pleuro-^\ 

 phorus Bed proper is a dark-grey, 

 earthy fissile limestone crowded 

 with Pleurophorus, and constitutes 

 the lower portion of the bed. It 

 is separated from the upper by a J>0 

 little shaly matter or ' beef,' while 

 the upper portion of the bed is 

 often replaced by ' beef ' or sur- 

 rounds lenticular masses of hard 

 dark limestone J 



Shales, black 



The Bone- Bed. Upper layer a 

 hard massive grit, with many fish- 

 remains. It is separated from the 

 lower bed by a distinct parting. 

 This lower bed is a fine-grained, 

 more regular crystalline rock, con- 

 spicuously ripple-marked __ 



Shales, black, laminated 3 



C Limestone, hard, grey, micaceous" 



(1) < and often somewhat siliceous : to 



(. 5 inches 



f Shale, often containing a thin band 



(2) -< (1 inch) of shelly limestone : to 

 (. 2 inches 



(t ~.\ ( Limestone, fissile, arenaceous : to 



^ 6 >l 2 inches _ 



Shales, black 1 



Limestone, grey, in lenticular"} 

 masses ; baryto-celestine : to 6 > 



inches J 



Shales, black, with a number of") 

 more or less prominent sandstone- > 



layers at the base ) 



Limestone, rather prominent, very"! 

 hard, irregular, often of septari- 

 (1)-<J form nature where the Pteromya- y 

 I Limestone is wanting : to 10 

 1^ inches 



(2) Shale: 1 inch 



C Limestone {Pteromya Bed). Hard 



(3) -< grey and dark-grey limestone 

 (. to 3 inches ) 



Shales, black: 10 to 14- inches 1 



Limestone-nodules, greyish-blue, ") 



hard, at considerable distances >0 



apart horizontally : to 2 inches . 3 



Shales, black 1 



Limestone, hard, grey-blue, some 



what intermittent, nodular in }■ 



places : to 4 inches 



Shales, black, about 





ID 



(2) 



1(3) 



Limestone or greenish-grey impure ~"\ 

 sandstone, mixed with some black I n 

 shale : sometimes absent, but usu- ( 

 ally about J 



Shales, black 3 



[Suggested approximate 

 thickness.] 



Gervillia prcecursor Quen- 

 stedt, Pleurophorus elon- 

 gatus (very common), Iso- 

 cyprina ewaldi (Borne- 

 4 <( mann), Chemnitzia (two 

 species), Ch.granum Ditt- 

 mar, small coprolites, 

 fragment of an ichthyo- 

 doralite of Nemacanthus. 



~No fossils seen. 



Isocyprina ewaldi, peculiar 

 tracks as indentations 

 q , Gyrolepis alberti . Ag., 

 j Acrodus minimus Ag., 

 I Geratodus latissimus Ag., 

 ^ Hybodus minor Ag. 



(3) Isocyprina ewaldi. 



C Pteromya crowcombeia 

 (3) < Moore, very common, 

 (. Isocyprina ewaldi. 



1 Protocardia sp. indet. 



2 CPteria contorta, Isocy- 



prina eivaldi, Pleuro- 



2 <j phorus elongatus, Natica 



I oppeli Moore, Chemnitzia 



t. sp- nov., and Ch. granum. 



C Peculiar protuberances like 

 6 j the hardened infillings of 

 (. tubular bodies. 







Q. J. G. S. No. 265. 



