| details |
Paleocene |
|
Montana |
Tschudy,R.H. Stratigraphic distribution of species of the megaspore genus Minerisporites in North America. |
1976 |
| original |
Paleocene |
|
Wyoming |
Tschudy,R.H. Stratigraphic distribution of species of the megaspore genus Minerisporites in North America. |
1976 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Ultrastructural studies of selected North American Cretaceous megaspores of Minerisporites, Erlandsonisporites, Horstiporites, and Ricinospora, nov.gen. |
1978 |
| details |
Late Cretaceous |
|
Canada(Alberta) |
Speelman,J.D. et al. Megaspore paleoecology |
1980 |
| details |
Santonian |
Thanetian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Paleocene |
|
Montana |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Mesozoic |
|
Nd |
Kovach,W.L. A review of Mesozoic megaspore-ultrastructure. (In: Ultrastructure of Fossil Spores and Pollen. M.H.Kurmann and J.A.Doyle, editors) |
1994 |
| details |
Late Cretaceous |
Early Paleocene |
Colorado |
Fleming,R.F. et al. Multivariate analyses of palynomorph data as a key to depositional environments of Upper Cretaceous and Paleogene coal-bearing rocks of the western United States. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |
| details |
Late Cretaceous |
Early Paleocene |
New Mexico |
Fleming,R.F. et al. Multivariate analyses of palynomorph data as a key to depositional environments of Upper Cretaceous and Paleogene coal-bearing rocks of the western United States. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |
| details |
Nd |
|
Nd |
Srivastava,G.K. et al. Megaspores of some Indian species of Isoetes L. and comparable living and fossil forms |
1995 |
| details |
Late Maestrichtian |
|
North Dakota |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |