CORRELATION TABLE OF 



Forma- 

 tion 



Slate belt of New York 





O 



i-J 



Zone with D i p 1 . f o 1 i a e e u s, 

 C o r y n . e u r t u s and Lor 

 raine fossils (Waterford) 



r Zone with D i p 1 . q u a d r i 

 inucronatus, D. folia 

 ceus, D. pusillus, 



Oorjn. curtus, Triar- 

 tlirus becki etc. (Rural 

 •2 ^ cemetery, etc.) 



Transitional zone with Clima- 

 cogr. caudatus, Crjp- 

 togr. tricornis, Triar- 

 thrus becki etc. (Mechan- 

 ic icville, \^an Schaick island) 

 ? Upper Dicellogr. zone (Lans- 

 ingburg power-liouse) 



g Zone with Dipl. amplexi- 

 c ^ ca ulis (Troj) 



Lower Dicellogr. zone (Nor- 



manskill beds) 



>5 



J3 1 



a 

 o 



C 



a 



a 



<u 



<D 



25 



Zone with Dipl. d e n t a t n s 



and Cryptogr. anten- 



narius (Deep kill) 

 Transitional subzone(Mt Moreno) 

 Zone with D i d y m o g r . b i f i - 



dus and Phyllogr. anna 



(Deep kill) 



Zone with Tetr. (Deep kill) 

 subz. b Goniogr. subzone 

 " a Clonogr. subzone 



Top of I Zone with Dictyonema fla- 

 Upper ^ be Hi for me (Schaghticoke 

 Cambric | etc.) 



Lorrai; 



Utica 

 q u 1 

 (Qu( 

 tog 

 St J 



Upper 

 and 

 (=zo 



Lower 

 etc. 

 Co^ 

 Lap 



Beds 



Point : 



St Ai 

 and 

 shah 

 Divi 



Main 

 (Gui 



Diet, 

 zone 

 St J 



