- Author:
- Ravn,R.L.;Witzke,B.J.
- Year:
- 1994
- Title:
- The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors)
- Reference:
- Ravn,R.L. et al. (1994) The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors) Geological Society of America, Special Paper # 287 P. 111- 128
- Google Academy:
- try to search by title in english
Genus | Species | Country(Region) | From | To |
---|---|---|---|---|
Schizophacus | Schizophacus majusculus | Iowa | Middle Cenomanian | |
Stellatopollis | Stellatopollis largissimus | Iowa | Early Cenomanian | |
Stephanocolpites | Stephanocolpites | Nd | Nd | |
Stephanocolpites | Stephanocolpites tectorius | Iowa | Middle Cenomanian | |
Taurocusporites | Taurocusporites segmentatus | Iowa | Late Albian | Early Cenomanian |
Trichodinium | Trichodinium sp | Iowa | Middle Cenomanian | |
Triporoletes | Triporoletes cenomanianus | Iowa | Middle Cenomanian | |
Triporoletes | Triporoletes pluricellulus | Iowa | Middle Cenomanian | |
Triporoletes | Triporoletes sp | Iowa | Middle Cenomanian | |
Undulatisporites | Undulatisporites pannuceus | Iowa | Late Albian | Early Cenomanian |