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
Westphalensisporites	Westphalensisporites irregularis	Iowa	Desmoinesian
Wilsonipollenites	Wilsonipollenites vesicatus	Iowa	Morrowan	Desmoinesian
Wilsonites	Wilsonites circularis	Iowa	Middle Pennsylvanian
Wilsonites	Wilsonites delicatus	Iowa	Morrowan	Early Missourian
Wilsonites	Wilsonites delicatus	Iowa	Morrowan	Early Missourian
Wilsonites	Wilsonites vesicatus	Iowa	Morrowan	Desmoinesian
Zonalosporites	Zonalosporites	Nd	Nd
Zonalosporites	Zonalosporites ellipsoides	Iowa	Morrowan	Desmoinesian
Zonalosporites	Zonalosporites magnus	Iowa	Atokan
Zonalosporites	Zonalosporites shansiensis	Iowa	Desmoinesian
Zonalosporites	Zonalosporites signatus	Iowa	Desmoinesian
Zonalosporites	Zonalosporites tenuis	Iowa	Desmoinesian
Zonalosporites	Zonalosporites winslowae	Iowa	Desmoinesian
Zosterosporites	Zosterosporites triangularis	Iowa	Morrowan	Desmoinesian