102 



FOSSIL ESTHERI^. 



monarch of this tribe. Prom the same place as the last, where it occurs sparingly in every 

 part of the sandstone and shale, that contains vegetable remains. 



" Only these two species of shells have yet been discovered in this interesting spot, 

 and they are certainly of sufficient geological importance to deserve recording. Depressed 

 specimens of Cypris concentrica are found also in the lower sandstone and shale at 

 Cloughton and Haiburn Wyke." 



The order of succession of the shales and sandstones beneath the Cornbrash on the 

 Yorkshire coast has been given in detail by Dr. T. Wright, F.G.S., in the ' Quart. Joum. 

 Geol. Soc./ vol. xvi, p. 31, thus : 



1. 

 2. 

 3. 



4. 

 5. 

 6. 

 7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 



18fl!, 



186. 

 19. 



20. 

 21. 



22. 

 23. 

 24. 

 25. 



26. 



Ft. In, 

 Cornbrash. 



Carbonaceous sandstone 40 



Siliceous rock 4 



Grey clays 6 



Grey sand-rock 8 



Brown sand-rock 2 



Whitish and carbonaceous sandstones, with stems 



ofPlants 4 



Carbonaceous sandstone, with stems of Plants ... 9 



Sandy shales 10 



Grey limestone. Fossiliferous, marine 18 



Carbonaceous sandstone, with Plant-remains 6 



Carbonaceous shale 1 



Dark-grey clay 4 



Sandstone and clay, carbonaceous 2 



Sandy clays. TJnio distortus and Plant-remains ... 3 



Carbonaceous shale. Plant-remains 1 



Carbonaceous shales and sandstones 1 



Carbonaceous shale. Uniones and Plant-remains . 4 



Shale and ironstone 2 



Sandstone 1 



Shale (Gristhorpe Plant-bed). Estheeia concen- 

 trica 2 



Sandstone 12 



Ferruginous sand-rock. Pholadomya, Cardium, 



Trigonia 5 



Sandstone \ 4 



Ironstone-rock. Lima, Serpula 2 



Shale and sandstone. Plant-remains 4 



Dark-grey clay. Plant-remains and Estheria con- 

 centrica 10 



Oolitic rock (MUlepore-bed). Fossiliferous, marine. 10 



0^ 



















) Upper shales and sandstones. 





 

 

 

 6 

 

 

 

 

 

 6 

 

 

 





 





 

 

 







and more. 



) Lower shales and sandstones. 



Dr. Wright remarks, bed No.' 25 (the 26th beneath the Cornbrash of the Yorkshire 

 coast) is " a dark-grey clay, containing the remains of Plants in its upper portion, and 



