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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
Densosporites Densosporites spongeosus Iowa Pennsylvanian
Densosporites Densosporites spongeosus Iowa Pennsylvanian
Densosporites Densosporites oblatus Iowa Pennsylvanian
Lycospora Lycospora nitida Iowa Pennsylvanian
Lycospora Lycospora paulula Iowa Pennsylvanian
Endosporites Endosporites micromanifestus Iowa Pennsylvanian
Endopollenites Endopollenites zonalis Iowa Pennsylvanian
Torispora Torispora recta Iowa Pennsylvanian
Torispora Torispora undulata Iowa Pennsylvanian
Torispora Torispora speciosa Iowa Pennsylvanian
Vestisporites Vestisporites laevigatus Iowa Pennsylvanian
Perotrilites Perotrilites parvigracilus Iowa Pennsylvanian
Florinipollenites Florinipollenites pellucidus Iowa Pennsylvanian
Florinipollenites Florinipollenites millotti Iowa Pennsylvanian
Florinipollenites Florinipollenites visendus Iowa Pennsylvanian
Guthoerlisporites Guthoerlisporites volans Iowa Pennsylvanian
Endosporites Endosporites circularis Iowa Pennsylvanian