230 THE RH^TIC ROCKS OF PTLLE HILL, BRISTOL. 





ft. in. 



> 10 ^ 



/ 



Shales^ black, alternately 

 more regularly lamin- 

 ated and more earthy, 

 with occasional pyritic 

 stams, very fossiliferous 

 at various levels, the 

 Opliiolepis at 13" and 20" 

 below g. 



-} 



e. Shales, black, earthy, py 

 ritic, passing down into 



d. SJiaJes, lol&Gk, rather thickly 

 laminated, clayey, with 

 thin sandy seams, con- 

 taining bivalves with 

 well-jDreserved tests, a 

 few scattered coprolites 

 and small reptilian bones 



c. Pyritic Sandstone, lamin- 

 ated, thin, but continu- 



^ ous, I" to 2" 



h. ShaJes, black, earthy, im-^ 

 perfectly laminated 

 above, with shell frag- 

 ments, coprolites, and 

 fish-scales ; more regu- 

 larly laminated below, 

 with bivalve shells re- 

 taining the test . . . .J 



Limestone, compact, blue, 

 shelly, in one or two 

 seams, ironstained on sur- 

 faces, and rotting away ^03* 

 into a soft sandy clay in 

 the middle, along joint 

 planes 



y 2 10 < 



Avicula contorta, Schizo- 

 dus Ewaldi, Myacites 

 striato-granulata, Car- 

 dium rhceticum, Pecten 

 vaIonie7isis, Ostrea al- 

 inna {f), Gyrolejns Al- 

 berti. 



Pecten valoniensis, Avicula 

 contorta, Plicatula 

 Archiaci, ScJiizodus 

 Ewaldi, Modiola min- 

 ima, Natica Oppelii, 

 Actceonina (C.) ovi- 

 forynis, and other Gas- 

 teropods, Schizodus 

 concentricus^ Lucina 

 Stop2Xi7iiana, Serpida 

 constrictor. 

 ''Avicula contorta, Schizo- 

 dus Ewaldi, Ostrea 

 {A.) alpina, Cardium 

 sp., Myophoria Emm- 

 richi, Gervillia prcBCur- 

 sor, Ophiolepis Damesii, 

 Acrodus minimus, Gyro- 

 lepis Alberti, Myacites 

 striato-gramdata, Ana- 

 tina Suessi. 



3 



r 2 1 



Schizodus Ewaldi, My- 

 ophoria Emmrichi, 

 Avicula contorta, Ostrea 

 alpina. 



1 



