| original |
Middle Buntsandstein |
|
E.Germany(Gera) |
Schon,M. Hystrichosphaerideae of the Middle Buntersandstein of Thuringen |
1967 |
| details |
Late Permian |
|
West Pakistan |
Sarjeant,W.A.S. Acritarchs and Tasmanitids from the Chhidru Formation, Uppermost Permian of West Pakistan. |
1970 |
| details |
Late Changhsingian |
|
Hungary |
GгczЎn,F. et al. The Permian - Triassic Boundary in the Transdanubian Central Range. |
1987 |
| 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 |