| details |
Nd |
|
Nd |
Potonie,R. Position of the Paleozoic spore genera in the natural system. |
1954 |
| details |
Jurassic |
|
|
Men©ndez,C.A. Palynological data on the Argentinian Pre-Tertiary floras |
1969 |
| details |
Early Jurassic |
|
USSR(Irkutskaya Oblast) |
Gutova,L.N. et al. Vegetation of Early and Middle Jurassic Epochs of the Irkutsk Coal Basin. |
1969 |
| original |
Westphalian C |
Westphalian D |
France |
Brousmiche,C. Grambastia (Sphenopteris) goldenbergii (Andrae), nov. comb., species type of a new genera of Carboniferous fern sporanga. |
1978 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |