LIST OF SPECIES DESCRIBED. 



465 



SECTION VI. 

 LIST OF FOSSILS DESCRIBED IN THIS REPORT, 



POTSDAM GEOUP. 



Name. 



Locality. 



Page. 



PLANTS. 



Palseochorda prima, n. sp 



Head of Eedwater Valley 



331 

 332 

 333 



333 



335 

 336 

 337 

 337 

 338 

 339 

 340 



341 



343 



Palaeophycus occidentalis, n. sp.. 



do 



' ' sp. undetermined 



._' do 



INCERTECEDES. 



Arenicolithus, sp. ? 



Red Canon Creek 



BRACHIOPODA. 



Lingulepis pinnaformis Owen . .... . . 



cuneolus n. sp 



do 



perattenuatus, n. sp. 



do 



dakotensis M.& H .. 



Castle Creek 



Obolus ? pectenoids Whitf 



do 



Obolella polita Hall 



Eedwater Canon 



nana M. &H 



do 



CRUSTACEA. 



Crepicephalus (Loganellus) centralis, n. sp 



planus, n. sp 



Castle Creek 



do 







JURASSIC. 



Asterias ? dubiuin, n. sp 



Pentacrinus asteriscus M. & H. 



BRACHIOPODA. 



Lingula brevirostris M. & H . 



Ebynchonella myrina H. & M . . . 



LAMELLIBRANCHIATA. 



Ostrea strigilecula White . 



Gryphsea calceola var. nebrascensis M. & H . 



Pecten newberryi, n. sp 



Camptonectes bellistriata Meek 



extenuatus M. & H 



30 B H 



Spearfish Creek , 



Big Horn Mountains . 



Spearfish Creek... 

 Eed Canon Creek 



Belle Fourche Eiver, Sun Dance Hills, and 

 near Beaver Creek. 



Big Horn Mountains 



West of the Black Hills 



(September 12 and 20) 



East of the Belle Fourche 



344 



345 



346 

 347 



348 



349 

 350 

 351 

 353 



