896 DRAKE — THE GEOLOGY OF INDIAN" TERRITORY. [Sept. 3, 



6. Meekella striatocosiaia Cox. 



7- Temnocheilus foj'besianus McChesney. 



8. Chonetes sp. ? 



Near the top of the group, at a place about ten miles northwest of 

 Skiatook, the following fauna was found in sandstone strata : 



1. Chofietes verneuilana N. and P. 



2. Chonetes laevis Keyes. 



3. Productus s^).? 



4. Sanguinolites sp. ? 



Permian Fauna. 



Good collections of fossils were made at three different places 

 from beds that are classed as the lowest Permian. The first two 

 lists given below afford the evidence that has been used to draw 

 the line between the Permian and the Coal Measures. These two 

 collections of fossils come from widely separated localities and ap- 

 parently from the same stratigraphic position. 



Five miles east of McDermitt along the McDermitt-Chelsea road 

 the following fauna was found in beds of sandstone. 



1. Productus semireticulatiis Martin. 



2. Productus nebrascensis Owen. 



3. Productus auriculatus Swallow. 



4. Or this sp. ? 



5. Derby a crassa Meek and Hayden. 



6. Nuculana bellistriata Stevens. 



7. Pinna peracuta Shumard. 



8. Aviculopecte7i Occident alis Shumard. 



9. Aviculopecten sp. ? 



10. Myalina s7vallovi McChesney. 



1 1 . Edmondia aspenwallensis Meek. 



12. Edmondia 9'eflexa yiQok. 



13. Schizodus wheeleri Swallow. 



14. Schizodus insignis nov. sp. Drake. 



15. Macro don obsoletus Meek. 



16. Macrodon carbonarius Cox. 



17. Bakevellia parval M. and H. 



18. Murchisonia marcouiana. 



19. Gervilia ohioensis Herri ck. 



