| details |
Early Paleocene |
|
Wyoming |
Nichols,D.J. et al. Plant microfossil record of the terminal Cretaceous event in the Western United States and Canada. (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors) |
1990 |
| details |
Maastrichtian |
|
Colorado |
Kauffman,E.G. et al. The Cretaceous-Tertiary boundary interval at South Table Mountain, near Golden, Colorado. (In: Extinction events in earth history. IGCP, Proceeding of Project 216. E.G.Kauffman and O.H.Walliser, editors) |
1990 |
| details |
Late Maastrichtian |
|
North America |
Nichols,D.J. et al. Palynological evidence of effects of the terminal Cretaceous event on terrestrial floras in Western North America. (In: Extinction events in earth history. IGCP, Proceeding of Project 216. E.G.Kauffman and O.H.Walliser, editors) |
1990 |
| details |
Late Maastrichtian |
|
New Mexico |
Nichols,D.J. et al. Biostratigraphy of Upper Cretaceous non-marine palynofloras in a north-south transect of the Western Interior Basin. (In: Evolution of the Western Interior Basin) |
1993 |
| details |
Late Cretaceous |
Tertiary |
Nd |
Frederiksen,N.O. Uppermost Cretaceous and Tertiary spores/Pollen biostratigraphy. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Paleocene |
|
New Mexico |
Scott,A.C. et al. Fire across the K-T boundary: Initial results from the Sugarite Coal, New Mexico, USA. |
2000 |