Ravn,R.L.

Author:
Ravn,R.L.;Witzke,B.J.

Year:
1995

Title:
The palynostratigraphy of the Dakota Formation, (?Late Albian-Cenomanian) in its type area, northwestern Iowa and northeastern Nebraska, USA.

Reference:

Ravn,R.L. et al. (1995) The palynostratigraphy of the Dakota Formation, (?Late Albian-Cenomanian) in its type area, northwestern Iowa and northeastern Nebraska, USA. Pal¤eontographica Abteilung B Vol. 234 P. 93- 171

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Genus	Species	Country(Region)	From	To
Echimonocolpites	Echimonocolpites	Nd	Nd
Echimonocolpites	Echimonocolpites spinosus	Iowa	Middle Cenomanian
Echimonocolpites	Echimonocolpites spinosus	Colombia	Maestrichtian
Echimonocolpites	Echimonocolpites tersus	Nd	Nd
Equisetosporites	Equisetosporites ambiguus	Iowa	Middle Cenomanian
Equisetosporites	Equisetosporites virginiaensis	Iowa	Middle Cenomanian
Foraminisporis	Foraminisporis asymmetricus	Iowa	Early Cenomanian
Foraminisporis	Foraminisporis wonthaggiensis	Iowa	Early Cenomanian	Middle Cenomanian
Foveogleicheniidites	Foveogleicheniidites confossus	Iowa	Middle Cenomanian
Foveomonocolpites	Foveomonocolpites sp.1 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian	Late Cenomanian
Foveosporites	Foveosporites cenomanicus	Iowa	Early Cenomanian
Foveosporites	Foveosporites subtriangularis	Iowa	Middle Cenomanian
Foveotricolporites	Foveotricolporites rhombohedralis	Iowa	Middle Cenomanian
Fraxinoipollenites	Fraxinoipollenites constrictus	Iowa	Early Cenomanian	Middle Cenomanian
Gleichenia	Gleichenia dicarpoides	Iowa	Late Albian	Cenomanian
Gleichenia	Gleichenia dicarpoides	USSR(Tomskaya Oblast)	Nd
Gleicheniidites	Gleicheniidites senonicus	Iowa	Cenomanian