| details |
Asselian |
Roadian |
China(Shanxi) |
Zhu,H. On the dynamics of Permian phytoprovincial succession of the Tarim Plate. |
2000 |
| details |
Asbian |
Early Brigantian |
England(Northumberland) |
Gueinn,K.J. Miospore assemblages. (In: Geology of the Country around Bellingham: Memoir for 1 to 50,000 Geological Sheet 13: D.V.Frost and D.W.Holliday, editors) |
1980 |
| details |
Arundian |
Early Holkerian |
England(Yorkshire) |
Welsh,A. Appendix B: Miospore determinations from the Penny Farm Gill. (In: Lower Carboniferous sections in the Sedbergh District, Cumbria. I.C.Burgess) |
1986 |
| details |
Artinskian |
Kungurian |
Brazil(Rio Grande Sul) |
Burjack,M.I.A. Palynological study of the Charqueadas Coalfield, Rio Grande do Sul, Brazil. |
1978 |
| details |
Artinskian |
|
Madagascar |
Rakotoarivelo,H.J. Palynostratigraphical comparison in the coal bearing basin of Sakoa-Sakamena, Madagascar. |
1970 |
| details |
Artinskian |
|
China(Hunan) |
Zhu,H. et al. A study of palaeomagnetism of Permian strata in the Dafengkou section, Yuzhou, Henan Province. |
1996 |
| details |
Aptian |
|
Brazil(Maranhao) |
de Lima,M.R. Palynology of the Codo Formation, Region of Codo, Maranhao. |
1982 |
| details |
Aptian |
|
Brazil(Maranhao) |
de Lima,M.R. Palynology of the Codo Formation in the Codo Region. (In: Paleobotany and palynology of South America) |
1982 |
| details |
Aptian |
|
Alaska |
Mickey,M.B. et al. Paleontologic data: Tingmerkpuk and related units, Northwestern De Long Mountains, Brooks Ranke, Alaska. |
1995 |
| details |
Aptian |
Albian |
Alaska |
Mickey,M.B et al. Paleontologic data: Tingmerkpuk Sandstone and related units, northwestern de Long Mountains, Brooks Range, Alaska. |
1995 |
| details |
Aptian |
Albian |
Alaska(North Slope) |
Mickey,M.B. et al. Biostratigraphy report 109 outcrop samples Western Delong Mountains field party North Slope, Alaska. (In: Micropaleontology of Cretaceous and Jurassic shales from the Northwestern Delong Mountains, Western Brooks Range, Alaska, 1994-1997. M.B.Mickey and H.Haga, editors) |
1998 |
| details |
Aptian |
|
Antarctica |
Hathway,B. et al. Stratigraphy and age of the Lower Cretaceous Pedersen Formation, northern Antarctic Peninsula. |
2001 |
| details |
Anisian |
|
USSR(Pre-Urals) |
Tverdokhlebov,V.P. et al. Age of Surakay graycolored deposits and the time-range of Bukobai Group. |
1976 |
| original |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Albian |
|
Canada(NWT,Franklin) |
Hopkins,W.S. Preliminary ecological comments on Albian microfloras from the Canadian Arctic Islands. |
1971 |
| details |
Albian |
|
Canada(Arctic) |
Hopkins,W.S. Some spores and pollen from the Christopher Formation, (Albian), of Ellef and Amund Ringnes Island, and Northwestern Meville Island, Canadian Arctic Archipelago. |
1974 |
| details |
|
|
Austria |
Klaus,W. Microspore stratigraphy of the Salt rocks of the eastern Alps. |
1953 |