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
Triquitrites	Triquitrites protensus	Iowa	Atokan	Early Missourian
Triquitrites	Triquitrites sculptilis	Iowa	Middle Pennsylvanian
Triquitrites	Triquitrites sinani	Iowa	Atokan
Triquitrites	Triquitrites spinosus	Iowa	Desmoinesian	Early Missourian
Triquitrites	Triquitrites subspinosus	Iowa	Middle Pennsylvanian
Triquitrites	Triquitrites tribullatus	Iowa	Atokan	Early Missourian
Triquitrites	Triquitrites tribullatus	Iowa	Atokan	Early Missourian
Triquitrites	Triquitrites verrucosus	Iowa	Morrowan	Desmoinesian
Tuberculatisporites	Tuberculatisporites gigantonodatus	Iowa	Morrowan	Desmoinesian
Tuberculatisporites	Tuberculatisporites permagnus	Iowa	Middle Pennsylvanian
Tuberculatosporites	Tuberculatosporites robustus	Iowa	Middle Pennsylvanian
Vallatisporites	Vallatisporites foveolatus	Iowa	Morrowan
Verrucosisporites	Verrucosisporites densus	Nd	Nd
Verrucosisporites	Verrucosisporites donari	Iowa	Middle Pennsylvanian
Verrucosisporites	Verrucosisporites henshawensis sp. nov.	Kentucky	Conemaugh	Monongahela
Verrucosisporites	Verrucosisporites kaiserii sp. nov.	Arctic Ocean	Famennian
Verrucosisporites	Verrucosisporites microtuberosus	Iowa	Middle Pennsylvanian