82 



PENNSYLVANIAN SPORES OF ILLINOIS 



CORRELATION OF THE LOWER MC LEANSBORO COAL BEDS 

 WITH SUGGESTED LIMESTONE CORRELATIONS IN 

 FRANKLIN COUNTY 

 2 3 4 



MAP OF 

 FRANKLIN COUNTY 



SHOWING 



DIAMOND DRILL HOLE 



LOCATIONS 



<h— 





LEGEND 



m 



COAL 



E3 



UNDERCLAY 



m 



SANDSTONE 



m 



SILTSTONE 



■ 



SHALE 



B 



LIMESTONE 



H 



BLACK SHALE 



H 



SIDERITE CONCRETIONS 



m 



SHALE WITH SIDERITE 



VEINLETS 



TiT-l CALCAREOUS SANDSTONE 



Fig. 7. — Correlation by plant spores of lower McLeansboro coal beds. 



9. 



II). 

 11. 

 12. 

 13. 



14. 



15. 



16. 

 17. 

 18. 



19. 



20. 

 21. 

 22. 

 23. 

 24. 

 25. 



Laevigato-spor'ites ovalis sp. now 



L. pseudothicssenii sp. nov. 



L. punctatus sp. nov. 



L. minutus (Ibrahim) S. W. and B., 1944 



L. desmoinensis (Wilson and Coe) S. W. 



and B., 1944 



Cirratriradites annidiformis sp. 



Endosporites ornatus Wilson 



1940 



Triquitrites spinosus Kosanke, 



Calamospora brcviradiata sp. 



Lycospora parva sp. nov. 



L. granulata sp. nov.' 



L. punctata sp. nov. 



Raistrickia crinita sp. nov. 



R. pilosa sp. nov. 



"Spherites" sp. 



Wilson'ia delicata sp. nov. 



Gen. Nov. (see 5-A coal bed) 



nov. 

 and 



1943 

 nov. 



The dominant genus is Lycospora with 

 55 to 57 percent of the spore population. 

 L. parva sp. nov., and L. granulata sp. nov., 

 and L. punctata sp. nov. represent 30, 15, 

 and 10 to 12 percent of the spore population 



respectively. Laevigato-sporites , with 23 to 

 26 percent of the spore population, is next 

 in numerical importance. Laevigato- 

 sporites pseudothiessenii sp. nov. and L. 

 minutus (Ibrahim) S. W. and B., 1944, 

 represent 14 to 16 and 9 to 10 percent 

 of the spore population respectively, while 

 the remaining species of the genus are rare. 

 Punctati-sporites represents 10 to 12 percent 

 of the spore population and only P. trian- 

 gularis sp. nov. is important numerically 

 with six to eight percent. 



The Cutler-rider Coal Beds 



There are three thin coal beds within 90 

 feet above the Cutler limestone in Frank- 

 lin, Williamson, and Saline counties (fig. 

 7). The presence of all three of these coal 

 beds in a single diamond-drill core is rare 

 except in T. 7 S. and 8 S., R. 3 and 4 E. 



