original |
Early Guadalupian |
|
Oklahoma |
Clapham,W.B. Nature and paleogeography of Middle Permian floras of Oklahoma from their pollen record |
1970 |
original |
Namurian |
|
Argentina(La Rioja) |
Azcuy,C.L. Namurian and Westphalian miospores from the Malanzan-Loma larga Region, La Rioja Province, Argentina |
1975 |
original |
Westphalian |
|
Argentina(La Rioja) |
Azcuy,C.L. Namurian and Westphalian miospores from Malanzan-Loma larga Region, La Rioja Province, Argentina. Part 2. Systemaic descriptions and stratigraphic significance of themicroflores. |
1975 |
original |
Westphalian B |
|
England(Northumberland) |
Butterworth,M.A. et al. Miospores from the Westphalian A and B of northern England |
1988 |