Handbook of Paleontology 



369 





DEVONIAN SYSTEM 





Western 



West Central 



Central 



UPPER 



Chautauquan 



UPPER 



Chautauquan 



UPPER 



Chautauquan 



Chemung beds 

 Chadakoin beds 

 Cuba s.s. 

 Northeast sh. 1 



Chemung beds 



Chemung beds 

 Fall creek cgl. 



Shumla s.s. 1 

 Westfield sh. [ 

 Laona s.s. J 

 Gowanda sh. \ 

 Dunkirk sh. / 



Wellsburg s.s. 



Cayuta sh. 

 Longbeards Riffs s.s. 



Wellsburg s.s. 

 Cayuta sh. 



Senecan 



Senecan 



Senecan 



Portage beds 

 (Naples fauna) 

 Wiscoy sh. 

 Nunda s.s. 

 Gardeau sh. 



so oi ui 



Portage beds S * m 

 (Naples fauna) £ ^c 

 Wiscoy sh. ,2 Sf'o 

 Nunda s.s. in ^ 

 Gardeau sh. | West Hill : 

 Grimes s.s. 

 Hatch sh. 

 Rhinestreet. sh. 

 Cashaqua sh. 



Middlesex sh. 



Standish sh. 



West River sh. 



Genundewa l.s. 

 Genesee black sh. 

 Tully l.s. 



Portage beds 



(Naples-Ithaca fauna) 



Enfield sh. 

 flags | 



Hatch sh. 

 Rhinestreet sh. 

 Cashaqua sh. 



Middlesex sh. 



West River sh. 



Genundewa l.s. 

 Genesee black sh. 

 Tully l.s. 



Ithaca sh. 



Cashaqtia sh. 

 (Sherburne s.s.) 



Genesee black sh. 

 Tully l.s. 



MIDDLE 



Erian 



MIDDLE 



Erian 



MIDDLE 



Erian 



Hamilton beds 

 Moscow sh. (incl. 



Menleth l.s. at base) 

 Ludlowville sh. (incl. 

 Tichenor and Center- 

 field l.s.) 

 Skaneateles sh. (incl. 



supposed Cardiff sh. with 

 .' tafford l.s. at base) 

 ' Marcellus sh. 



Hamilton beds Hamilton beds 



Moscow sh. (incl. Moscow sh. (incl. 

 Menteth l.s. at base) Encrinal l.s. at base) 



Ludlowville sh. (incl. Ludlowville sh. (incl. 

 Tichenor and Center- Tichenor and Center- 

 field l.s.) field l.s.) 



Skaneateles sh. (incl. Skaneateles sh. (incl. 

 supposed Cardiff sh. with Motlville l.s. at base) 

 Stafford l.s. at base) 



Marcellus sh. Marcellus sh. (incl. Cherry 

 Valley l.s.) 



Ulsterian 



Ulsterian 



Ulsterian 



Onondaga l.s 



Onondaga l.s 



Onondaga l.s. 



LOWER 



LOWER 



LOWER 



Oriskanian 



Oriskanian 



Oriskanian 



— 



== 



Oriskany s.s. 



Helderbergian 



Helderbergian 



Helderbergian 



Coeymans l.s. 



(Upper Manlius: Keyser) (Upper Manlius: Keyser) 



