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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 sphaerotriangularis Iowa Pennsylvanian
Densosporites Densosporites spinifer Iowa Pennsylvanian
Densosporites Densosporites spongeosus Iowa Pennsylvanian
Densosporites Densosporites spongeosus Iowa Pennsylvanian
Densosporites Densosporites triangularis Iowa Pennsylvanian
Diaphanospora Diaphanospora parvigracila Iowa Pennsylvanian
Diaphanospora Diaphanospora parvigracila Illinois Desmoinesian
Diaphanospora Diaphanospora sp.1 sp. nov. Iowa Pennsylvanian
Dictyotriletes Dictyotriletes bireticulatus Iowa Pennsylvanian
Dictyotriletes Dictyotriletes castanaeformis Iowa Pennsylvanian
Dictyotriletes Dictyotriletes densoreticulatus Iowa Pennsylvanian
Dictyotriletes Dictyotriletes distortus Iowa Pennsylvanian
Dictyotriletes Dictyotriletes reticulocingulum Iowa Pennsylvanian
Elaterites Elaterites triferens Iowa Pennsylvanian
Endopollenites Endopollenites zonalis Iowa Pennsylvanian
Endosporites Endosporites circularis Iowa Pennsylvanian
Endosporites Endosporites globiformis Iowa Pennsylvanian