Upper Helderberg &: Waverly Groups 
(isru-CTjjjiDve;.) 
ontology NY.VolV. 
PlateXLVII. 
WMjliitnt 
.rniwnwiwz/fe 
iMUIIIIIUMlij,', 
. 
>aps oil clei 
PHL-Ast^iith 
