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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
Grumosisporites Grumosisporites rugus Iowa Pennsylvanian
Cristatisporites Cristatisporites indignabundus Iowa Pennsylvanian
Radiizonates Radiizonates difformis Iowa Pennsylvanian
Cingulizonates Cingulizonates loricatus Iowa Pennsylvanian
Crassispora Crassispora annulata sp. nov. Iowa Pennsylvanian
Crassispora Crassispora kosankei Iowa Pennsylvanian
Cappasporites Cappasporites distortus Iowa Pennsylvanian
Densosporites Densosporites annulatus Iowa Pennsylvanian
Densosporites Densosporites irregularis Iowa Pennsylvanian
Densosporites Densosporites sphaerotriangularis Iowa Pennsylvanian
Densosporites Densosporites spinifer Iowa Pennsylvanian
Densosporites Densosporites triangularis Iowa Pennsylvanian
Lycospora Lycospora granulata Iowa Pennsylvanian
Lycospora Lycospora micropapillata Iowa Pennsylvanian
Lycospora Lycospora pellucida Iowa Pennsylvanian
Lycospora Lycospora rotunda Iowa Pennsylvanian
Lycospora Lycospora torquifer Iowa Pennsylvanian