564 J. W. KIKKBY ON MARINE FOSSILS IN THE 



Fossils of Zone 6, at 2320 feet. 



Naticopsis? sp. 



Myalina modioliformis, Brown. 



Oarbonia Eankiniana, J. (Sf K. 



Carbonaria subula 'i,J.S^K. 

 G-anoid scales. 

 Plant-remains. 



Twenty feet or so further down is another impure limestone, ahout 

 six inches thick, in which a little univalve, Littorina scotohurdiga- 

 lensis, is the prevailing fossil *. 



Fossils of Zone 7, at 2350 feet 



Leperditia Okeni, Munst. 

 , var. 



Littorina scotoburdigalensis, Eth. 



bilineata, sp. nov. 



Kirkbya spiralis, J. # K. 



The strata associated with the marine zones Nos. 5, 6, and 7 

 contain the remains of plants, Entomostraca, and other fossils ; but 

 this part of the section is so illustrative of the way in which heds of 

 different structure and fossil contents alternate throughout the whole 

 series, that I give the following details of it : — 



Section of Strata seen in the cliffs to the east of Pittenweem. 



ft. in. 



1. EedSandstone 40 



2. Gi-rey Shale with sandstone bands above and ironstone 



bands and nodules below. Fragmentary remains of 

 small G-anoid fishes, and Leperditia Okeni, var. scoto- 



16 



3. Black Shale with ironstone bands. G-anoid scales, 



Lep. scotoburdigalensis, Beyrichia suharcuata, and 

 Lepidodendron 2 



4. Ooalt 2 



5. Grey Shale or Fireclay. Stigmarian roots and rootlets, 



and Lepidodendron 1 6 



6. Sandstone, flaggy, and with partings of shale above. 



Stigmarian roots (large) and rootlets and fragments 



of large stems 11 



7. Grey Shale, sandy above, with bands of ironstone 



nodules, and two thin beds of crinoidal limestone. 

 Species of Orthoceras, Nautilus, Loxonema, Macrochei- 

 lus, Leda, Bchizodus, JDiscina, Productus, Spiriferina, 

 Bairdia, Beyrichia, Actinocrimcs, Poteriocrinus, Ar~ 

 chmocidaris, Stenopora, plants, &c., as per list 20 



8. Ooalt 1 



9. Grey Shale. Stigmarian rootlets 6 



10. Sandstone. Stigmarian rootlets 20 



11. Grey Shale and flaggy beds 5 



12. Grey Shale with ironstone bands. Myalina, Spheno- 



pteris ajfinis, and other obscure remains of plants 15 



13. Black, carbonaceous Shale, laminated. Layers of 



Myalina modioliformis and coprolites 6 



*■ Dr. Traquair drew my attention to this bed. 



t These two coals have evidently been worked in former times, for both are 

 now represented by " waste " rather than coal ; and one of the old shafts may 

 be seen in section, as exposed by a fall pf the cliff. 



