| details |
Middle Campanian |
Late Campanian |
Canada(Saskatchewan) |
Eberth,D.A. et al. Stratigraphy, sedimentology and vertebrate paleontology of the Judith River Formation (Campanian) near Muddy Lake, westcentral Saskatchewan. |
1990 |
| details |
Late Eocene |
Middle Oligocene |
Argentina(Tierra) |
Zamaloa,M.C. et al. Some spores and pollen from the Cullen Formation (Upper Eocene to Middle Oligocene) Tierra del Fuego, Argentina. |
1990 |
| details |
Claiborne |
|
Kentucky |
Hower,J.C. et al. Cretaceous and Eocene Lignite deposits, Jackson Purchase, Kentucky. |
1990 |
| details |
Middle Eocene |
|
Canada(Yukon) |
Rouse,G.E. Palynological dating and paleoreconstruction of three gold and silver orebodies in the western Cordillera of Canada, United States and Mexico. (In: Palynology of Ore Deposits. E.I. Robbins, editor) |
1990 |
| details |
Late Maastrichtian |
Early Paleocene |
Canada(NWT,Mackenzie) |
Sweet,A.R. et al. Palynofloral response to K/T Boundary Events; A transitory interruption within a dynamic system. (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors) |
1990 |
| details |
Miocene |
Late Neogene |
Nepal |
Sarkar,S. Siwalik pollen succession from Surai Khola of Western Nepal and its reflection on palaeoecology. (In: Proceeding of the Symposium on the Vistas in Indian Palaeobotany. K.P.Jain and R.S.Tiwari, editors) |
1990 |
| details |
Miocene |
|
India(Arunachal Pradesh) |
Singh,T. et al. Siwalik sediments of Arunachal Himalaya: Palynology, palaeoecology and palaeogeogrphy. (In: Proceeding of the Symposium on the Vistas in Indian Palaeobotany. K.P.Jain and R.S.Tiwari, editors) |
1990 |
| 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 |
Late Barremian |
Early Albian |
China(Liaoning) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Late Barremian |
Early Albian |
China(Hopei) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Late Barremian |
Early Albian |
China(Inner Mongolia) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Late Barremian |
Early Albian |
China(Kansu) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Late Barremian |
Early Albian |
China(Sinkiang Uighur) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Late Barremian |
Early Albian |
China(Shansi) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Late Barremian |
Early Albian |
China(Tsinghai) |
Yu,J. The study of Early Cretaceous angiospermous pollen in northern China. |
1990 |
| details |
Early Cretaceous |
|
New Mexico |
Baltz,E.H. Palynomorphic evidence of age Dakota Sandstone at Montezum, New Mexico. (In: Tectonic development of the southern Sangre de Cristo Mountains, New Mexico.) |
1990 |
| details |
Paleocene |
Early Eocene |
USA(Gulf Coast) |
Cross,A.T. et al. Coal-forming plants through time in North America. |
1990 |