NO. 1851. WAVERLYA:^' PERIOD OF TENNESSEE— BA88LER. 2l7 



station the full thickness of the usual Fort Payne is shown, while 

 along the railroad near the station the uppermost beds of the Ridgetop 

 shales are encountered. The latter are abundantly fossiliferous and 

 contain besides numerous bryozoans and ostracods of known Kinder- 

 hook age, specimens of the species long ago described and listed by 

 Prof. A. Winchell as of Marshall or Kinderhook age.^ This fauna is 

 not discussed in detail here, since it requires much more study before 

 it can be listed and employed in exact correlation with Kinderhook 

 formations in the Mississippi Valley. 



The Maury green shale and the Chattanooga shale, with its Hardin 

 sandstone member, show no unusual features in this section, and need 

 no lengthy description. The Hardin sandstone is simply the physical 

 representation of the unconformable relations of the Chattanooga 

 shale, as evidenced by its conglomeritic nature. The Maury green 

 shale is hkewise conglomeritic. A similar phosphatic green shale 

 almost invariably follows the Chattanooga shale at many locahties. 

 In many sections the Maury green shale is succeeded by Ught blue 

 to green shales bearing the Kinderhook fauna mentioned by Winchell, 

 but in the present section the lowest beds assigned to this shale divi- 

 sion are sandy, fossiliferous cherts holding practically the same fauna 

 as the more typical clayey layers above. The main portion of the 

 shale, however, is as described frequently by Safford, a Ught blue to 

 green fossiliferous clayey fetid shale. Bryozoa form the most abun- 

 dant fossils of this shale, but none of them has been named. The 

 ostracods likewise are unnamed, with one exception, Ctenoholhina 

 loculata Ulrich, which is known also from the yellow clay beds at the 

 base of the Louisiana limestone in Missouri. The other classes of 

 fossils were studied by Winchell, who recognized among them numer- 

 ous Kinderhook species. His Ust of species, published in the 

 "Geology of Tennessee" (pp. 441-446), follows: 



Spirifera Mrta ? White and Whitfield. 



Rhynchonella sageriana Winchell. 



CTionetes muUicosta Winchell. 



Chonetes pulchella ? Winchell, 



Producta concentrica Hall. 



Chonetes jlscheri Norwood and Pratten. 



ZapJirentis ida ? Winchell. 



Conularia hyhlis White. 



Leda hellistriata ? Stevens. 



Solen scalpriformis Winchell. 



Discina saffordi Winchell. 



Pleurotomaria Mclcmanensis Winchell. 



Phillipsia tennesseensis Winchell. 



1 Safford's Geology of Tennessee, 1869, pp. 442-446. 



