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Author:
Ravn,R.L.
Year:
1979
Title:
An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa.
Reference:
Ravn,R.L. (1979) An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa. Iowa Geological Survey,Technical Paper # 6 P. 1- 117
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Genus Species Country(Region) From To
Spackmanites Spackmanites facierugosus Iowa Pennsylvanian
Spinososporites Spinososporites spinulistratus Iowa Pennsylvanian
Stellisporites Stellisporites inflatus Iowa Pennsylvanian
Tantillus Tantillus triquetrus Iowa Pennsylvanian
Tetanisporites Tetanisporites Iowa Pennsylvanian
Tetanisporites Tetanisporites granulatus sp. nov. Iowa Pennsylvanian
Thymospora Thymospora pseudothiessenii Iowa Pennsylvanian
Thysanites Thysanites Iowa Pennsylvanian
Thysanites Thysanites densus sp. nov. Iowa Pennsylvanian
Torispora Torispora recta Iowa Pennsylvanian
Torispora Torispora securis Iowa Pennsylvanian
Torispora Torispora speciosa Iowa Pennsylvanian
Torispora Torispora undulata Iowa Pennsylvanian
Trihyphaecites Trihyphaecites triangulatus Iowa Pennsylvanian
Triquitrites Triquitrites additus Iowa Pennsylvanian
Triquitrites Triquitrites bransonii Iowa Pennsylvanian
Triquitrites Triquitrites crassus Iowa Pennsylvanian