| details |
Carboniferous |
Permian |
Nd |
Remy,W. Monosaccate pteridospermous pollen of the Carboniferous and Permian as well as general considerations of Paleozoic pollen with air sacs. |
1954 |
| details |
Namurian |
|
USSR(Karagandinskaya) |
Lyuber,A.A. Parallelism of spore-pollen complexes of coal-complexes of spores and pollen of the Donets and the Kuznetsk Basins. |
1960 |
| details |
Westphalian |
|
USSR(Karagandinskaya) |
Lyuber,A.A. Parallelism of spore-pollen complexes of coal-complexes of spores and pollen of the Donets and the Kuznetsk Basins. |
1960 |
| details |
Nd |
|
Nd |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |