Ravn,R.L.

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
Leiotriletes	Leiotriletes plicatus	England(Gloucestershire)	Late Visean
Pilosisporites	Pilosisporites triquetrus	England(Staffordshire)	Westphalian C
Acanthotriletes	Acanthotriletes triquetrus	England(Staffordshire)	Westphalian C
Apiculatasporites	Apiculatasporites iucundus	France(Lorraine)	Early Stephanian
Apiculatisporis	Apiculatisporis iucundus	France(Lorraine)	Early Stephanian
Vestispora	Vestispora clara	France(Lorraine)	Early Stephanian
Foveolatisporites	Foveolatisporites clarus	France(Lorraine)	Early Stephanian
Leiotriletes	Leiotriletes subadnatoides	France(Moselle)	Westphalian	Stephanian
Deltoidospora	Deltoidospora subadnatoides	France(Moselle)	Westphalian	Stephanian
Pilosisporites	Pilosisporites concavus	France(Tarn)	Stephanian A	Stephanian B
Apiculatisporis	Apiculatisporis concavus	France(Tarn)	Stephanian A	Stephanian B
Deltoidospora	Deltoidospora convexa	France(Vosges)	Westphalian A	Autunian
Leiotriletes	Leiotriletes convexus	France(Vosges)	Westphalian A	Autunian
Reticulitriletes	Reticulitriletes europaeus	Germany(Leipzig)	Keuper
Palaeospongisporis	Palaeospongisporis europaeus	Germany(Leipzig)	Keuper
Deltoidospora	Deltoidospora pseudolevis	Illinois	Desmoinesian
Leiotriletes	Leiotriletes pseudolevis	Illinois	Desmoinesian