FAUN AL CHART 



21 



Species 





M 

















<u 





c 















rt 



rt 











3 



C 



<u 



0^ 





o 



Q 

 c 



C 



c 



C 



2^ 



"2 



Oh 



O 



O 





> 





o 

 U 



s 



Coryellina elegans (Croneis and Gutke) 



X 



X 

 X 



cf. 



X 



X 

 X 



X 



X 

 X 



p 

 ? 



X 

 X 



X 



X 

 X 



_ 



X 



? 



X 



X 





Halliella? retiferiformis Girty 



3 



Primitia cestriensis Ulrich 



Primitia cestriensis caldwellensis Ulrich 





Primitia fayettevillensis Girty 



Primitia granimarginata Ulrich 



3 



Primitia seminalis Girty 



1,2,3 



Primitia simulans Ulrich 





Primitia subaequata Ulrich 







Tetrasacculus mirablilis (Croneis and Gale) 





YOUNGIELLIDAE 



Moorea? circincta Cooper 





Moorea granosa Ulrich 





Moorites brevis Cooper 





Moorites convexus Cooper 





Moorites elongatus Cooper 





Moorites intermedius Cooper 





Moorites jhomboidalis (Croneis and Bristol) . 



3,6 



"The last column shows scattered occurrences outside of Illinois, as follows: 1. Barnett shale, San Saba County, Texas; 2. Batesville 

 sandstone, Arkansas; 3. Fayetteville shale, Arkansas; 4. Fayetteville shale, Oklahoma; 5. Lower Windsor series, Ontario; 6. Reynolds 

 (Mauch Chunk) formation, Morgantown, West Virginia; 7. Amsden formation, Wyoming; and 8. Lower Carboniferous formations, 

 Great Britain. 



