| details |
Maastrichtian |
|
Wyoming |
Nichols,D.J. et al. A new Cretaceous-Tertiary boundary locality in the Western Powder River Basin, Wyoming; Biological and geological implications. |
1992 |
| details |
Cretaceous |
|
Wyoming |
Tschudy,R.H. et al. Extinction and survival of plant life following the Cretaceous/Tertiary boundary event, Western Interior, North America. |
1986 |
| details |
Maastrichtian |
Paleocene |
Wyoming |
Leffingwell,H.A. Palynology of the Lance (Upper Cretaceous) and Fort Union (Paleocene) Formations of the type Lance area, Wyoming. (In: Symposium on Palynology of the Late Cretaceous and Early Tertiary. R.M Kosanke and A.T. Cross, editors) |
1970 |
| details |
Late Cretaceous |
|
Wyoming |
Meyers,W.C. Environmental analysis of Almond Formation (Upper Cretaceous), from Rock Springs Uplift, Wyoming. |
1977 |
| details |
Early Paleocene |
|
Wyoming |
Nichols,D.J. et al. Palynostratigraphy of the Tullock Member (Lower Paleocene) of the Fort Union Formation in the Powder Ricer Basin, Montana and Wyoming. (In: Evolution of Sedimentary Basins. A.C.Hoffman, Project Coordinator) |
1992 |
| details |
Late Cretaceous |
Early Paleocene |
USA(Mid-Continent) |
Spicer,R.A. Plants at the Cretaceous-Tertiary boundary. (In: Evolution and Extinction. W.G. Chaloner and A. Hallam, editors) |
1989 |
| details |
Maastrichtian |
|
USA |
Takahashi,K. Distribution and change of the Upper Cretaceous and Lower Paleogene microflora in Circum-Pacific Regions and Siberia. |
1970 |
| details |
Maastrichtian |
Early Paleocene |
North Dakota |
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 |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Late Maastrichtian |
Early Paleocene |
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 |
Campanian |
Maastrichtian |
North America |
Lupia,R. Discordant morphological disparity and taxonomic diversity during the Cretaceous angiosperm radiation: North American pollen record. |
1999 |
| details |
Maastrichtian |
|
Montana |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Paleocene |
|
Montana |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| original |
Late Cretaceous |
|
Montana |
Norton,N.J. et al. Guide sporomorphae in the Upper Cretaceous-Lower Tertiary of eastern Montana (U.S.A). |
1967 |
| details |
Late Cretaceous |
|
Montana |
Norton,N.J. et al. Palynology of the Upper Cretaceous and Lower Tertiary in the type locality of the Hell Creek Formation, Montana, USA. |
1969 |
| original |
Late Cretaceous |
|
Montana |
Norton,N.J. Palynology of the Upper Cretaceous and Lower Tertiary in the type locality of the Hell Creek Formation |
1965 |
| details |
Maestrichtian |
|
Montana |
Rigby,J.K.,Jr. et al. Dinosaurs from the Paleocene Part of the Hell Creek Formation, McCone Country, Montana. |
1987 |