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
Osmundacidites	Osmundacidites wellmanii	Iowa	Early Cenomanian	Middle Cenomanian
Foveogleicheniidites	Foveogleicheniidites confossus	Iowa	Middle Cenomanian
Gleicheniidites	Gleicheniidites senonicus	Iowa	Cenomanian
Gleicheniidites	Gleicheniidites sp.1 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian
Gleicheniidites	Gleicheniidites sp.2 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian
Plicifera	Plicifera dicarpoides	Iowa	Late Albian	Cenomanian
Gleichenia	Gleichenia dicarpoides	Iowa	Late Albian	Cenomanian
Dictyophyllidites	Dictyophyllidites harrisii	Iowa	Late Albian	Cenomanian
Dictyophyllidites	Dictyophyllidites impensus	Iowa	Cenomanian
Crybelosporites	Crybelosporites bursatus	Iowa	Middle Cenomanian	Late Cenomanian
Perotrilites	Perotrilites bursatus	Iowa	Middle Cenomanian	Late Cenomanian
Crybelosporites	Crybelosporites brenneri	Iowa	Middle Cenomanian	Late Cenomanian
Crybelosporites	Crybelosporites pannuceus	Iowa	Middle Cenomanian
Crybelosporites	Crybelosporites striatus	Iowa	Early Cenomanian	Middle Cenomanian
Cibotiumspora	Cibotiumspora jurienensis	Iowa	Early Cenomanian	Middle Cenomanian
Foveosporites	Foveosporites cenomanicus	Iowa	Early Cenomanian
Foveosporites	Foveosporites subtriangularis	Iowa	Middle Cenomanian