| original |
Wolfcampian |
|
Texas |
Tschudy,R.H. et al. Early Permian Vesiculate pollen from Texas, USA. |
1966 |
| details |
Early Permian |
|
Oklahoma |
Morgan,B.E. Two new species of Hamiapollenites from the Wellington Formation of Oklahoma. |
1976 |
| details |
Late Wolfcampian |
|
Texas |
Gupta,S. Miofloral succession and interpretation of the Base of the Permian system in the eastern Shelf of North Central Texas, USA. |
1977 |
| details |
Permian |
|
China(Hupei) |
Chen,J. Permian spores and pollen |
1978 |
| details |
Early Wolfcampian |
|
Texas |
Pashuck,R.J. et al. Palynological zones of the Wichita Group of North Central Texas and their correlation with the Gearyan Stage of Kansas and Dunkard Group of West Virginia. |
1979 |
| details |
Permian |
|
China(N.China) |
Gao,L. et al. Spores and pollen. Carboniferous and Permian spores and pollen. (In: Paleontological Atlas of North China.III.Micropaleontological Volume.) |
1984 |
| details |
Autunian |
|
China(Hupei) |
Gao,L. Carboniferous and Early Permian spore assemblages of North China Region and the boundary of the Carboniferous and Permian |
1985 |
| details |
Sakmarian |
|
Iran |
Ghavidel-Syooki,M. Biostratigraphy and paleo-biogeography of some Paleozoic rocks at Zagros and Alborz Mountains. |
1994 |