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
Calamospora	Calamospora nebulosa	Iowa	Morrowan	Desmoinesian
Calamospora	Calamospora parva	Iowa	Morrowan	Atokan
Calamospora	Calamospora pedata	Iowa	Middle Pennsylvanian
Calamospora	Calamospora saariana	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora straminea	Iowa	Atokan	Early Missourian
Callisporites	Callisporites concavus	Iowa	Morrowan	Atokan
Camptotriletes	Camptotriletes bucculentus	Iowa	Morrowan	Desmoinesian
Camptotriletes	Camptotriletes certus	Iowa	Atokan
Camptotriletes	Camptotriletes confertus	Iowa	Atokan
Camptotriletes	Camptotriletes corrugatus	Iowa	Atokan
Camptotriletes	Camptotriletes superbus	Iowa	Atokan
Camptotriletes	Camptotriletes triangularis	Iowa	Morrowan	Desmoinesian
Cappasporites	Cappasporites	Nd	Nd
Cincturasporites	Cincturasporites minimus	Iowa	Morrowan
Cingulizonates	Cingulizonates loricatus	Iowa	Morrowan	Atokan
Cirratriradites	Cirratriradites annuliformis	Iowa	Middle Pennsylvanian
Cirratriradites	Cirratriradites fragilis sp. nov.	Illinois	Desmoinesian