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
Calamisporites	Calamisporites breviradiatus	Iowa	Morrowan	Early Missourian
Calamisporites	Calamisporites hartungianus	Iowa	Morrowan	Desmoinesian
Calamisporites	Calamisporites liquidus	Iowa	Morrowan	Desmoinesian
Calamisporites	Calamisporites macer	Iowa	Morrowan	Atokan
Calamisporites	Calamisporites minutus	Iowa	Morrowan	Early Missourian
Calamisporites	Calamisporites mutabilis	Iowa	Morrowan	Desmoinesian
Calamisporites	Calamisporites pedatus	Iowa	Morrowan	Desmoinesian
Calamospora	Calamospora breviradiata	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora elliptica	Iowa	Morrowan	Desmoinesian
Calamospora	Calamospora flexilis	Iowa	Middle Pennsylvanian
Calamospora	Calamospora hartungiana	Iowa	Morrowan	Desmoinesian
Calamospora	Calamospora hartungiana	Iowa	Morrowan	Desmoinesian
Calamospora	Calamospora liquida	Iowa	Morrowan	Desmoinesian
Calamospora	Calamospora macer	Iowa	Morrowan	Atokan
Calamospora	Calamospora membrana	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora minuta	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora mutabilis	Iowa	Morrowan	Desmoinesian