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
Anacanthotriletes	Anacanthotriletes spinosus	Illinois	Middle Pennsylvanian
Granulatisporites	Granulatisporites spinosus	Illinois	Middle Pennsylvanian
Deltoidospora	Deltoidospora badamensis	India(Bihar)	Permian
Lacinitriletes	Lacinitriletes badamensis	India(Bihar)	Permian
Calamospora	Calamospora breviradiata	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora minuta	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora membrana	Iowa	Morrowan	Early Missourian
Calamospora	Calamospora saariana	Iowa	Morrowan	Early Missourian
Calamisporites	Calamisporites breviradiatus	Iowa	Morrowan	Early Missourian
Calamisporites	Calamisporites minutus	Iowa	Morrowan	Early Missourian
Granasporites	Granasporites medius	Iowa	Morrowan	Early Missourian
Crassispora	Crassispora kosankei	Iowa	Morrowan	Early Missourian
Wilsonites	Wilsonites delicatus	Iowa	Morrowan	Early Missourian
Wilsonites	Wilsonites delicatus	Iowa	Morrowan	Early Missourian
Guthoerlisporites	Guthoerlisporites delicatus	Iowa	Morrowan	Early Missourian
Florinites	Florinites mediapudens	Iowa	Morrowan	Early Missourian
Florinites	Florinites circularis	Iowa	Morrowan	Early Missourian