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
Laevigatosporites	Laevigatosporites desmoinesensis	Iowa	Morrowan	Desmoinesian
Laevigatosporites	Laevigatosporites dunkardensis	Iowa	Middle Pennsylvanian
Laevigatosporites	Laevigatosporites ellipsoides	Iowa	Morrowan	Desmoinesian
Laevigatosporites	Laevigatosporites globosus	Iowa	Middle Pennsylvanian
Laevigatosporites	Laevigatosporites globosus	Iowa	Atokan	Early Missourian
Laevigatosporites	Laevigatosporites maximus	Iowa	Morrowan	Desmoinesian
Laevigatosporites	Laevigatosporites medius	Iowa	Morrowan	Desmoinesian
Laevigatosporites	Laevigatosporites minor sp. nov.	Iowa	Middle Pennsylvanian
Laevigatosporites	Laevigatosporites minor	Iowa	Atokan	Early Missourian
Laevigatosporites	Laevigatosporites striatus	Iowa	Middle Pennsylvanian
Laevigatosporites	Laevigatosporites vulgaris	Iowa	Middle Pennsylvanian
Laevigatosporites	Laevigatosporites vulgaris	Iowa	Middle Pennsylvanian
Latipulvinites	Latipulvinites kosankii	Iowa	Atokan
Leioaletes	Leioaletes circularis	Iowa	Morrowan
Leiotriletes	Leiotriletes adnatoides	Iowa	Morrowan	Desmoinesian
Leiotriletes	Leiotriletes adnatus	Iowa	Morrowan	Desmoinesian
Leiotriletes	Leiotriletes angularis	Iowa	Chesterian