76 



ILLINOIS STATE GEOLOGICAL SURVEY 



from bedding surfaces of the Forester No. 1 

 core, drilled in Perry County, Illinois. This 

 species was first reported by Chaloner 

 (1954b) from the Beaver Bend Limestone 

 of Indiana. 



The following genera and species were 

 identified from a coal (maceration 810) in 

 the Hardinsburg Sandstone, Crittenden 

 County, Kentucky: 



Triletes subpilosus forma major (A) 

 T. globosus var. (A) (C) 



Cystosporites giganteus (P) 



In addition, many small spores, referable 

 to Densosporites, were noted adhering to 

 the megaspores of T. globosus var. (A) . 

 This variety was restricted to this one sam- 

 ple of the Hardinsburg and one from the 

 Waltersburg Formation. Two additional 

 samples (macerations 166 and 763) prob- 

 ably from the Hardinsburg Formation, 

 Johnson County, Illinois, contained cuticles 

 and sporangial masses of small spores refer- 

 able to Schulzospora. T. subpilosus forma 

 major was also represented in maceration 

 166. 



The only Glen Dean sample is from a 

 plant bed (maceration 888) at the base (?) 

 of the Glen Dean Formation from Big 

 Stone Gap, Wise County, Virginia. Only a 

 few complete spores of Triletes echinoides 

 and additional fragments were present in 

 the coarse residue. 



Upper Chester Series 



One sample of a 6-inch coal (maceration 

 206) from the Tar Springs Sandstone, Cald- 

 well County, Kentucky, contained only 

 megaspores of Triletes subpilosus forma 

 major. However, another sample from 6 

 inches of a reported 2-foot coal (maceration 

 760) , probably from the Tar Springs For- 

 mation, contained no spinose lageniculate 

 megaspores. This assemblage contained 

 many large seed membranes, some abortive 

 spores of Cystosporites giganteus, and one 

 spore similar to those of Didymosporites. 



The following species were identified 

 from the 4-inch coal (maceration 168) in 

 the Vienna Formation, obtained from the 

 Illinois Central Railroad cut, north of 

 Grantsburg, Johnson County, Illinois: 

 Triletes subpilosus forma major (A) 

 Cystosporites giganteus (A) 



In addition some seed membranes were 

 present. Five other samples of this coal 

 (macerations 687A-B, 758, 764, 765, and 

 842, probably all taken from this railroad 

 cut) contain the same assemblage but with 

 variations in relative abundance. Masses of 

 spores of Schulzospora also were noted in 

 macerations 764 and 842. The coal sample 

 was macerated in two separate segments. 

 The upper 2 inches of coal (maceration 

 687A) contained abundant, well preserved 

 megaspores, whereas the bottom portion 

 (maceration 687B) contained only a few 

 spores and cuticle. A spore coat fragment, 

 possibly of T. echinoides, was found in this 

 latter sample. 



A few megaspores of Triletes globosus 

 var. (A) were picked from samples of the 

 overlying Waltersburg Formation, Ran- 

 dolph County, Illinois, during conodont in- 

 vestigations (Rexroad, 1957, locality 11, 

 samples 3, 4) . This variety is known only 

 from the Hardinsburg and Waltersburg 

 Formations. 



Fragments of spores referred to Triletes 

 echinoides were picked from bedding sur- 

 faces in the upper part of the Menard For- 

 mation during a study of the Forester No. 1 

 core, drilled in Perry County, Illinois. 



A 4-inch coal (maceration 952) at the 

 top of the Palestine Sandstone, Jackson 

 County, Illinois, did not yield any mega- 

 spores. Samples were not available from 

 the overlying Clore Formation. 



Two samples were obtained from car- 

 bonaceous layers in the Degonia Sandstone 

 of Illinois. The sample (maceration 143) 

 from 8 inches below the base of the Kin- 

 kaid Formation, Jackson County, Illinois, 

 contained abundant megaspores of Triletes 

 subpilosus forma major, whereas the sam- 

 ple (maceration 200) from Pope County 

 contained abundant megaspores of T. hor- 

 ridus but very few of 7". subpilosus forma 

 major. In addition the Pope County sam- 

 ple yielded a few spores referable to T. 

 splendidus, a species that had not been re- 

 ported from the United States before and is 

 known only from this one sample. 



Samples of the Kinkaid, the uppermost 

 formation of the Chester Series, were not 

 available so that the megaspores of at least 



