434 



A. W. GRABAU THE SHERBURNE SANDSTONE 



from which many of the typical Hamilton species are missing. This is 

 clearly shown in the following tahle, in which rr = very rare ; r = rare ; 

 re = fairly common ; c = common ; x = present : 



1. 



2, 



3. 



4, 



5, 



6. 



7, 



8, 



9, 



10. 



11, 



12, 



13, 



14. 



15. 



16. 



17. 



18. 



19. 



20. 



21. 



22. 



23. 



24, 



25, 



26, 



27, 



Table I. — Table oj Species Found in the 

 Eastern Sherburne 



Brachiopods 



Tropidoleptus carinatus 



Spirifer tullius 



Spirifer granulosus ? 



5. mucronatus 



5. audaculus 



5. mesistrialis ? 



5. fimbriatus 



Liorhynchus multicostus 



L. mesicostalis 



Cyrtina kamiltonensis 



Crania cf. leoni 



Cryptonella eudora ? 



Eunella lincklaeni 



Lingula punctata ? 



Chonetes coronatus 



C. setigerus 



C. lepidus 



C. mucronatus 



Leptostrophia cf. perplana 



Camarotoechia prolifica 



C. congregata 



C. sapho 



C. cf. stephani 



Ambocoelia umbonata 



Strop halosia'truncata 



Schuchertella chemungensis arctostriata 

 Atrypa reticularis 



Eastern 

 Sher- 













burne 





a; 



c 









i 







OJ 





•£ 



^ 





5 









^ 



c 



^ 



•-1 



^ 



b£ 



3 



2 



C 



3 



< 



1 



X 



c 



1 



c 



1 



C 



5 



c 



1 



u 



10 



c 



X 







X 





2 



re 



X 







X 





3 



re 



X 







X 





11 



c 



X 







X 





1 



c 



X 











1 



rr 







X 



X 



X 



1 



rr 



X 





X 



X 





1 



c 



X 











1 



r 





X 



X 



X 



X 



2 



re 



X 



X 



X 



X 





1 



e 











X 



1 



rr 



X 





X 







1 



rr 



X 







X 



— 



1 



c 



X 





X 







4 



re 



X 







X 





b 



re 



X 







X 







1 



rr 



X 



X 



X 



X 





1 



rr 



X 







■? 





1 



r 



X 











2 



e 



X 











3 



c 



X 











1 



a 



X 









X 



1.^ 



rr 







X 



X 



X 



2 



rr 



X 



X 



X 



X 





1 



rr 



X 





X 



X 





1 



c 



X 







X 





2 



re 



X 





X 







Pelecypoda 



28. Leda diuersa 



29. Cyprdcardella tenuistriata 



30. C. gregaria 



31. Palaeoneilo constricta 



32. Grammy sia bisculcata 



33. Modiomorpha subalata chemungensis 



34. Modiomorpha subalata 



35. Liopteria dekayi 



36. Nucula bellistriata 



37. N. corbuliformis 



38. Nuculites triqueter 



39. Nuculites ohlongatus 



40. Goniophora hamiltonensis 



2 



r 



X 



X 



X 



X 





2 



rr 



X 





X 



X 





1 



c 



X 





X 



X 





7 



r 



X 



X 



X 



X 



X 



1 



rr 



X 









X 





1 



rr 







X 



X 



X 



X 



2 



rr 



X 



X 



X 



X 



— 



2 



re 



X 







X 





1 



rr 



X 







X 





1 



rr 



X 





X 



X 





2 



rr 



X 





X 



X 





4 



re 



X 



— 





X 





3 



r 



X 



— 



X 



X 



1 



