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
Ahrensisporites	Ahrensisporites guerickei	Iowa	Morrowan	Atokan
Ahrensisporites	Ahrensisporites ornatus sp. nov.	Iowa	Desmoinesian
Ahrensisporites	Ahrensisporites sinanii	Iowa	Atokan
Ahrensisporites	Ahrensisporites vagus	Iowa	Middle Pennsylvanian
Alatisporites	Alatisporites hexalatus	Iowa	Desmoinesian
Alatisporites	Alatisporites hoffmeisterii	Iowa	Middle Pennsylvanian
Alatisporites	Alatisporites pustulatus	Iowa	Middle Pennsylvanian
Alatisporites	Alatisporites trialatus	Iowa	Desmoinesian
Anacanthotriletes	Anacanthotriletes	Illinois	Middle Pennsylvanian
Anacanthotriletes	Anacanthotriletes concinnus	Spitsbergen	Early Carboniferous
Anacanthotriletes	Anacanthotriletes minor	Scotland(Fife)	Namurian A
Anacanthotriletes	Anacanthotriletes paucispinosus sp. nov.	Iowa	Middle Pennsylvanian
Anacanthotriletes	Anacanthotriletes spinosus	Iowa	Morrowan	Desmoinesian
Anacanthotriletes	Anacanthotriletes spinosus	Illinois	Middle Pennsylvanian
Anafoveosporites	Anafoveosporites	Iowa	Late Namurian	Westphalian
Anafoveosporites	Anafoveosporites avcinii	Iowa	Morrowan	Atokan
Anafoveosporites	Anafoveosporites avcinii	Iowa	Late Namurian	Westphalian A