| details |
Late Rotliegendes |
|
Germany |
Bolkhovitina,N.A. Pollen of Conifers in Mesozoic deposits and its value for stratigraphy. |
1952 |
| details |
Rotliegendes |
|
Germany |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Mesozoic |
|
Nd |
Neviani,I. The stratigraphic value of conifer pollen in the Mesozoic |
1963 |
| details |
Late Rotliegendes |
|
Austria |
Bharadwaj,D.C. The organization in pollengrains of some early conifers. |
1964 |
| details |
Permian |
|
Czechoslovakia |
KalibovЎ,M. The palynological investigation of the Permian in the Broumov area. |
1967 |
| details |
Permian |
|
Germany |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |