| details |
Early Rotliegendes |
|
Nd |
Potonie,R. The phylogeny of the spore shape in regard to families of fossil plants (except the angiosperms). |
1961 |
| details |
Early Rotliegendes |
|
France |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Autunian |
|
France |
Bharadwaj,D.C. The organization in pollengrains of some early conifers. |
1964 |
| details |
Early Permian |
|
France(Herault) |
Bharadwaj,D.C. The organization in pollen grains of some early conifers. |
1964 |
| details |
Early Permian |
|
W.Germany |
Bharadwaj,D.C. The organization in pollen grains of some early conifers. |
1964 |
| details |
Permian |
|
Czechoslovakia |
KalibovЎ,M. The palynological investigation of the Permian in the Broumov area. |
1967 |
| details |
Carboniferous |
|
Nd |
Bharadwaj,D.C. et al. Suggestions for a morphological classification of sporae dispersae. |
1968 |
| details |
Carboniferous |
|
Nd |
Roselt,G. Palaobotanic and palaobotanical method and geological investigation. |
1972 |
| details |
Permian |
|
France |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |