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
Stephanocolpites Stephanocolpites tectorius Iowa Middle Cenomanian
Stereigranisporis Stereigranisporis pulvinulatus Spitsbergen Late Paleocene Eocene
Stereigranisporis Stereigranisporis regius Iowa Middle Cenomanian
Stereigranisporis Stereigranisporis regius USSR(WSL) Paleocene
Stereisporites Stereisporites psilatus Iowa Late Albian Cenomanian
Stereisporites Stereisporites regius Nd Nd
Striatriletes Striatriletes coronarius Iowa Middle Cenomanian
Striatriletes Striatriletes coronarius Minnesota Cenomanian
Striatriletes Striatriletes striatus Nd Nd
Taurocusporites Taurocusporites segmentatus Iowa Early Cenomanian
Tigrisporites Tigrisporites reticulatus Iowa Middle Cenomanian
Trichodinium Trichodinium sp Iowa Middle Cenomanian
Tricolpites Tricolpites nemejcii Iowa Middle Cenomanian
Tricolpites Tricolpites patens Iowa Middle Cenomanian
Tricolpites Tricolpites vulgaris Iowa Late Albian Cenomanian
Triporoletes Triporoletes cenomanianus Iowa Early Cenomanian Middle Cenomanian
Triporoletes Triporoletes pluricellulus Iowa Early Cenomanian