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
Granulatisporites Granulatisporites granularis Iowa Pennsylvanian
Granulatisporites Granulatisporites microgranifer Iowa Pennsylvanian
Granulatisporites Granulatisporites parvus Iowa Pennsylvanian
Granulatisporites Granulatisporites spinosus Iowa Pennsylvanian
Grumosisporites Grumosisporites rugus Iowa Pennsylvanian
Guthoerlisporites Guthoerlisporites delicatus Iowa Pennsylvanian
Guthoerlisporites Guthoerlisporites volans Iowa Pennsylvanian
Hymenospora Hymenospora multirugosa Iowa Pennsylvanian
Illinites Illinites unicus Iowa Pennsylvanian
Indospora Indospora boleta Iowa Pennsylvanian
Kewaneesporites Kewaneesporites patulus Iowa Pennsylvanian
Knoxisporites Knoxisporites stephanophorus Iowa Pennsylvanian
Knoxisporites Knoxisporites triradiatus Iowa Pennsylvanian
Laevigatosporites Laevigatosporites desmoinesensis Iowa Pennsylvanian
Laevigatosporites Laevigatosporites dunkardensis Iowa Pennsylvanian
Laevigatosporites Laevigatosporites globosus Iowa Pennsylvanian
Laevigatosporites Laevigatosporites medius Iowa Pennsylvanian