| details |
Early Guadalupian |
|
Oklahoma |
Clapham,W.B. Permian miospores from the Flowerpot Formation of western Oklahoma |
1970 |
| details |
Kungurian |
|
North America |
Hart,G.F. A review of the classification and distribution of the Permian miospore-Disaccate Striatiti. |
1964 |
| details |
Early Guadalupian |
|
Oklahoma |
Clapham,W.B. Nature and paleogeography of Middle Permian floras of Oklahoma from their pollen record |
1970 |
| details |
Sakmarian |
|
Gabon |
Jardin©,S. Microfloras from formations in Gabon attributed to the Karroo. |
1974 |
| details |
Early Triassic |
|
China(Yunnan) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 2: The Mezozoic Spores and Pollen. |
2000 |