330 



GEOLOGY OP THE EUREKA DISTRICT. 



DEVONIAN Continued. 



Genera and species. 



o 



- 



I 



I 



Remarks. 



Pteropoda. 



Tentacnlites attenuatus, Hall 



bellulus, Hallf 



gracilistriatus Hall 

 scalariformis Hall . . 



Styliola fissurella Hall 



var. intermittens Hall . . 



Conularia (sp. f ) 



Coleolus lievis Walcott 



Hyolithes (like H. aclis Hall 



Cephalopoda. 



Orthoceras (5 sp. ?) 



Gomphoceras suboviforme Walcott 

 Cyrtoceras cessator, H. & W 



ne vadense Walcott 



Gouiatites desideratus Walcott 



kingi,H. &W 



sp.? 



Crustacea. 



Beyriehia occidentalis Walcott . 

 Leperditia rotuudata Walcott . . 



Poxilopoda. 

 Phacops rana Green (sp.) . . 



Dalmanites meeki Walcott . 



sp. ? 



Proetus nevadae Hall . . 



marginalis Conrad (sp. ) 



sp.f 



Phillipsia coronata, Hall f 



X 



X 

 X 



X 



x 



X 

 X 



X 



X 



x 



X 



x 

 x 







X 



M. 



M. 



Ham. of New York and Canada. 

 Ham. of New York and Canada. 

 Ham. of New York and Canada. 

 Up. Held, of New York. 

 Ham. of New York and Canada. 



Geol. Expl. Fortieth Par., vol. iv, p. 278. 



Geol. Expl. Fortieth Par., vol. iv. p. 279. 

 Like (G. discoidus Hall). 



Up. Held, and Ham. of New York, Can- 

 ada, etc. 



Ham. of New York, Pal., N. Y., vol. vii. 



p. 129, 1888. 

 Up. Held, of New York. 



Ham. of New York. 



CARBONIFEROUS. 



