| original |
Middle Buntsandstein |
|
E.Germany(Gera) |
Schon,M. Hystrichosphaerideae of the Middle Buntersandstein of Thuringen |
1967 |
| details |
Early Triassic |
Middle Triassic |
USSR(Urals) |
Tuzhikova,V.I. Triassic acritarchs of the Urals |
1971 |
| details |
Rhaetian |
|
Spitsbergen |
Bjaerke,T. et al. Mesozoic palynology of Svalbard. 1. The Rhaetian of Hopen, with a preliminary report on the Rhaetian and Jurassic of Kong Karlsland. |
1977 |
| details |
Early Triassic |
|
E.Germany(Erfurt) |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |
| details |
Early Triassic |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |