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
Cicatricosisporites	Cicatricosisporites australiensis	Iowa	Middle Cenomanian	Late Cenomanian
Cicatricosisporites	Cicatricosisporites crassiterminatus	Iowa	Early Cenomanian	Middle Cenomanian
Cicatricosisporites	Cicatricosisporites dorogensis	Iowa	Late Albian	Middle Cenomanian
Cicatricosisporites	Cicatricosisporites mesozoicus	Iowa	Middle Cenomanian
Stereigranisporis	Stereigranisporis regius	Iowa	Middle Cenomanian
Cicatricosisporites	Cicatricosisporites paradorogensis	Iowa	Middle Cenomanian
Cicatricosisporites	Cicatricosisporites sternum	Iowa	Middle Cenomanian
Cicatricosisporites	Cicatricosisporites venustus	Iowa	Late Albian	Cenomanian
Cicatricososporites	Cicatricososporites sp.1 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian
Costatoperforosporites	Costatoperforosporites foveolatus	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
Sphagnum	Sphagnum regium	Iowa	Middle Cenomanian
Ischyosporites	Ischyosporites crassimacerius	Iowa	Middle Cenomanian
Lycopodiumsporites	Lycopodiumsporites crassimacerius	Iowa	Middle Cenomanian
Ischyosporites	Ischyosporites estherae	Iowa	Middle Cenomanian