90 



PENNSYLVANIAN SPORES OF ILLINOIS 



the same genera and species of small spores 

 and are correlated as the same bed. 



The following genera and species have 

 been identified from samples of the above 

 two mines unless otherwise noted : 



1. Punctati-sporites foveosus sp. nov. 



2. P. mundus sp. nov. 



3. P. obliquus sp. nov. 



4. P. orbicularis sp. nov. 



5. P. grandiverrucosus Kosanke, 1943 



6. P. sp. 



7. Granulati-sporites commissuralis sp. nov. 



8. G. levis sp. nov. 



9. G. pellucidus sp. nov. 



10. Laevigato-sporites ovalis sp. nov. 



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

 and B., 1944 



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



13. L. minimus (Wilson and Coe) S. W. and 

 B., 1944 



14. Cirratriradites sp.* 



15. Endosporites formosus sp. nov. 



16. Triquitrites discoideus sp. nov. 



17. T. sp. 



18. Calamospora hartungiana Schopf, 1944 



19. C. sp. 



20. Raistrickia aculeata sp. nov. 



21. R. rubida sp. nov. 



22. Florinites sp. 



Punctati-sporites foveosus sp. nov., P. 

 mundus sp. nov. and Granulati-sporites 

 pellucidus sp. nov. appear restricted to this 

 bed. Laevigato-sporites minimus (Wilson 

 and Coe) S. W. and B., 1944, Triquitrites 

 discoideus sp. nov., and Raistrickia rubida 

 sp. nov. are not known to occur above this 

 horizon. 



LaSalle Coal Bed 



The LaSalle coal bed underlying the La- 

 Salle limestone is represented by a sample 

 collected in the SW. \/ A SW. l/ A NW. \/ A 

 sec. 33, T. 16 N., R. 11 E., Bureau Coun- 

 ty. It contains abundant spores, some of 

 which are restricted to the coal bed. 



The coal at the above locality is exposed 

 in a small ravine along the north wall of 

 Illinois valley. The coal bed is overlain by 

 black shale, and is five feet below the La 

 Salle limestone. 



The following genera and species are 

 known from the LaSalle coal bed : 



1. Punctati-sporites orbicularis sp. nov. 



2. P. verrucifer sp. nov. 



3. P. vermiculatus sp. nov. 



4. P. latigranifer (Loose) S. W. and B., 1944 



5. P. sidcatus Wilson and Kosanke, 1944 



* A fragment of a spore undoubtedly referable to this 

 genus was observed in maceration 487, but none were 

 found in maceration 486, both of which are from Wabash 

 County. 



6. Granulati-sporites levis sp. nov. 



7. Reticulatv-sporites muricatus sp. nov. 



8. Laevigato-sporites ovalis sp. nov. 



9. L. latus sp. nov. 



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

 and B., 1944 



11. Triquitrites spinosus Kosanke, 1943 



12. r. sp. 



13. Calamospora breviradiata sp. nov. 



14. C. liquida sp. nov. 



15. C. hartungiana Schopf, 1944 



16. C. sp. 



17. Raistrickia aculeata sp. nov. 



18. Florinites similis sp. nov. 



19. Cadiospora magna sp. nov. 



20. Illinites unicus sp. nov. 



21. Wilsonia vesicatus sp. nov. 



Laevigati-sporites represents 25 to 30 

 percent and Punctati-sporites 20 to 22 per- 

 cent of the total spore population. Laevi- 

 gato-sporites ovalis sp. nov. is the most abun- 

 dant species and it comprises 16 to 18 per- 

 cent of the total spore population. Calamo- 

 spora, Reticulati-sporites, and Cadiospora 

 comprise about 10 percent each of the total 

 spore population. The other species are 

 minor elements of the spore population so 

 far as abundance is concerned. 



Punctati-sporites vermiculatus sp. nov. 

 is restricted to this bed. Cadiospora magna 

 sp. nov. is illustrated as restricted to this 

 bed on the spore distribution chart, but is 

 probably present in at least one of the coal 

 beds not here reported. The LaSalle coal 

 bed is further characterized by several 

 species whose known range ends with this 

 bed, as illustrated on the spore distribution 

 chart. There should be little difficulty in 

 identifying this coal bed if it is found else- 

 where. 



Upper McLeansboro Coal Beds 

 The upper McLeansboro coal beds re- 

 ceive attention in the following pages in 

 what is believed to be their order of depo- 

 sition. Coal samples which are thought to 

 come from beds equivalent to the Cohn, 

 Bogata, Newton, and Gila coal beds re- 

 spectively were recovered from rotary-drill 

 holes. These coal samples were prepared 

 and examined, but the results are not in- 

 cluded here because samples from the type 

 sections have not been studied. 



Spore studies indicate considerable 

 changes in the spore population from coal 

 bed to coal bed. This supports the proba- 

 bility that a systematic study of all of the 



