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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
Rugospora Rugospora ruginosa Australia(Queensland) Visean
Savitrisporites Savitrisporites asperatus Iowa Morrowan
Savitrisporites Savitrisporites camptotus Iowa Middle Pennsylvanian
Savitrisporites Savitrisporites concavus Iowa Morrowan Atokan
Savitrisporites Savitrisporites majus Iowa Middle Pennsylvanian
Savitrisporites Savitrisporites nux Iowa Morrowan Atokan
Savitrisporites Savitrisporites robustus Iowa Morrowan
Savitrisporites Savitrisporites sp.1 sp. nov. Iowa Middle Pennsylvanian
Schopfipollenites Schopfipollenites Nd Nd
Schopfipollenites Schopfipollenites ellipsoides Iowa Morrowan Desmoinesian
Schopfipollenites Schopfipollenites signatus Iowa Desmoinesian
Schopfipollenites Schopfipollenites sp.1 sp. nov. Iowa Atokan
Schopfipollenites Schopfipollenites sp.1 sp. nov. Iowa Atokan
Schopfipollenites Schopfipollenites sp.1 sp. nov. Iowa Atokan
Schopfipollenites Schopfipollenites tenuis Iowa Desmoinesian
Schopfites Schopfites carbondalensis Iowa Desmoinesian
Schopfites Schopfites colchesterensis Iowa Desmoinesian Early Missourian