ORI8KANY FAUNA OF BECRAFT MOUNTAIN 

 NEW YORK SERIES continued 



Ontario 8 

 Siluric 



Devonic 



-' 

 ] 



Oswegan" 

 (Paleontaric) 



Niagaran 7 

 (Mesontaric) 



Cayugan 8 

 (Neontaric) 



c j Helderbergian* 



" ( 



o 

 o 



O ' 



<D 



Erian 1 



Senecan J 



Chautauquan 



14 



f Oneida conglomerate 



Sliawangunk grit 

 [ Medina sandstone 



f Clinton beds 

 I Rochester shale 

 I Lockport limestone 

 ( Guelph dolomite 



j" Salina beds 



( Kondout waterlime 18 



[ Manlius limestone 19 



f Coeymans limestone 20 

 i New Scotland beds 21 

 I Becraft limestone 22 

 [ Kingston beds 23 



Oriskany beds 



Esopus grit 24 

 Schoharie grit 

 Onondaga limestone 



f Ma reel his shale 

 1 Hamilton beds 



f Tully limestone 

 Genesee shale 

 Portage beds 



(Naples beds, 

 Ithaca beds, 

 Oneonta beds, 



local facies) 



IChemung beds 

 (Catskill sandstone 25 

 local facies) 



1 Champlainic. This most appropriate designation was introduced by the concur- 

 rence of the four geologists for the formations here assigned to it (exclusive of the 

 Potsdam sandstone), and it has clear right of way over the later application of the name 

 to the period of postglacial alluvium. That the later term has become ingrained in 



