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
Petalosporites	Petalosporites quadrangulus	Iowa	Early Cenomanian	Middle Cenomanian
Phimopollenites	Phimopollenites sp.1 Ravn & Witz.,1995 sp. nov.	Iowa	Middle Cenomanian
Pityosporites	Pityosporites constrictus	Iowa	Middle Cenomanian
Plicatella	Plicatella	Nd	Nd
Plicatella	Plicatella bilateralis	Iowa	Middle Cenomanian
Plicatella	Plicatella cristata	Iowa	Early Cenomanian	Middle Cenomanian
Plicatella	Plicatella ethmos	Iowa	Early Cenomanian	Middle Cenomanian
Plicatella	Plicatella fucosa	Iowa	Early Cenomanian	Middle Cenomanian
Plicatella	Plicatella jansonii	Iowa	Late Albian	Middle Cenomanian
Plicatella	Plicatella potomacensis	Iowa	Cenomanian
Plicatella	Plicatella problematica	Iowa	Middle Cenomanian
Plicatella	Plicatella tricornitata	Iowa	Late Albian	Cenomanian
Plicatella	Plicatella unica	Iowa	Early Cenomanian	Middle Cenomanian
Plicatella	Plicatella witzkei	Iowa	Early Cenomanian
Plicifera	Plicifera dicarpoides	Iowa	Late Albian	Cenomanian
Plicifera	Plicifera dicarpoides	USSR(Tomskaya Oblast)	Nd
Pollen	Pollen type B May & Trav.,1973 sp. nov.	Nd	Nd