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
Gleicheniidites	Gleicheniidites sp.1 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian
Gleicheniidites	Gleicheniidites sp.2 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian
Granulatisporites	Granulatisporites michinus	Iowa	Early Cenomanian	Middle Cenomanian
Impardecispora	Impardecispora marylandensis	Iowa	Late Albian
Impardecispora	Impardecispora minor	Iowa	Middle Cenomanian
Impardecispora	Impardecispora purverulenta	Iowa	Early Cenomanian	Middle Cenomanian
Inaperturopollenites	Inaperturopollenites dubius	Iowa	Late Albian	Middle Cenomanian
Ischyosporites	Ischyosporites	Nd	Nd
Ischyosporites	Ischyosporites crassimacerius	Iowa	Middle Cenomanian
Ischyosporites	Ischyosporites crassimacerius	Oklahoma	Cenomanian
Ischyosporites	Ischyosporites estherae	Iowa	Middle Cenomanian
Ischyosporites	Ischyosporites pseudoreticulatus	Iowa	Middle Cenomanian
Ischyosporites	Ischyosporites sp.1 Ravn & Witz.,1995 sp. nov.	Iowa	Early Cenomanian	Middle Cenomanian
Ischyosporites	Ischyosporites sp.2 Ravn & Witz.,1995 sp. nov.	Iowa	Early Cenomanian	Middle Cenomanian
Klukisporites	Klukisporites	England(Yorkshire)	Bajocian
Laevigatosporites	Laevigatosporites gracilis	Iowa	Late Albian	Cenomanian
Lecaniella	Lecaniella foveata	Iowa	Middle Cenomanian	Late Cenomanian