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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
Punctatisporites Punctatisporites incomptus Iowa Morrowan
Punctatisporites Punctatisporites irrasus Iowa Morrowan Atokan
Punctatisporites Punctatisporites kankakeensis Iowa Middle Pennsylvanian
Punctatisporites Punctatisporites latigranifer Iowa Atokan
Punctatisporites Punctatisporites microverrucosus Iowa Morrowan Desmoinesian
Punctatisporites Punctatisporites minutus Iowa Morrowan Early Moscovian
Punctatisporites Punctatisporites nudus Iowa Morrowan Desmoinesian
Punctatisporites Punctatisporites obesus Iowa Morrowan Desmoinesian
Punctatisporites Punctatisporites papillosus Iowa Morrowan
Punctatisporites Punctatisporites planus Iowa Morrowan Desmoinesian
Punctatisporites Punctatisporites potoniei Iowa Morrowan Desmoinesian
Punctatisporites Punctatisporites productus Kentucky Conemaugh Monongahela
Punctatisporites Punctatisporites reticulocingulum Iowa Morrowan Desmoinesian
Punctatisporites Punctatisporites rudis Nd Nd
Punctatisporites Punctatisporites saetiger Iowa Middle Pennsylvanian
Punctatisporites Punctatisporites saetiger Kentucky Conemaugh Monongahela
Punctatisporites Punctatisporites setulosus Iowa Morrowan Desmoinesian