THEIR USE IN CORRELATION 119 



PLATE 13 



Fig. 1. — Sc/iopfites dimorphus sp. nov. reconstructed drawing of genotype, maceration 537-Ls 

 Slide 5, No. 2 coal bed, Franklin County, Illinois, diameter 113.2 microns. Drawing 

 illustrating the external transverse plane. 



Fig. 2. — S. dimorphus sp. nov. drawing of longitudinal section illustrating levigate proximal 

 surface and ornamented distal surface. Distal portion of spore coat exclusive of 

 ornamentation is thicker than proximal portion of spore coat. 



Fig. 3. — S. dimorphus sp. nov. genotype photomicrograph, maceration 527-Ls Slide 5, No. 2 coal 

 bed, Franklin County, Illinois, dimensions are 105 X 113.2 microns. 



Fig. 4. — S. colchesterensis sp. nov. holotype, maceration 603-C Slide 7, No. 2 coal bed, Fulton 

 County, Illinois, dimensions are 78.1 X 90.3 microns. 



Fig. 5. — Schulzospora rata sp. nov. reconstructed drawing of genotype, maceration 587 Slide 

 8, Battery Rock coal bed, Hardin County, Illinois, dimensions are 81.9 X 109.2 microns. 

 Drawing illustrating the external transverse plane. 



Fig. 6. — Longitudinal section of fig. 5 illustrating complete bladder overlap of the body. 



Fig. 7. — Cross-section of fig. 5 illustrating spherical body and bladder overlap. 



Fig. 8. — Schulzospora rata sp. nov. genotype, maceration 587 Slide 8, Battery Rock coal bed, 

 Hardin County, Illinois, dimensions are 81.9 X 109.2 microns. 



