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Author:
Ravn,R.L.
Year:
1986
Title:
Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa
Reference:
Ravn,R.L. (1986) Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa Iowa Geological Survey,Technical Paper # 7 P. 1- 244
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Genus Species Country(Region) From To
Verrucosisporites Verrucosisporites microverrucosus Iowa Morrowan Desmoinesian
Verrucosisporites Verrucosisporites morulatus Iowa Morrowan Atokan
Verrucosisporites Verrucosisporites nitidus Iowa Morrowan
Verrucosisporites Verrucosisporites papillosus Iowa Morrowan
Verrucosisporites Verrucosisporites rudis Nd Nd
Verrucosisporites Verrucosisporites sifati Iowa Middle Pennsylvanian
Verrucosisporites Verrucosisporites verrucosus Iowa Middle Pennsylvanian
Verrucososporites Verrucososporites abditus Iowa Morrowan Desmoinesian
Verrucososporites Verrucososporites facierugosus Iowa Middle Pennsylvanian
Verrucososporites Verrucososporites papillosus Iowa Morrowan
Vesicaspora Vesicaspora saarensis Iowa Middle Pennsylvanian
Vesicaspora Vesicaspora wilsonii Iowa Desmoinesian
Vesicaspora Vesicaspora wilsonii Iowa Desmoinesian Early Missourian
Vestispora Vestispora clara Iowa Middle Pennsylvanian
Vestispora Vestispora clara France(Lorraine) Early Stephanian
Vestispora Vestispora costata Iowa Morrowan Desmoinesian
Vestispora Vestispora fenestrata Iowa Middle Pennsylvanian