| original |
Late Precambrian |
|
China(Inner Mongolia) |
Timofeev,B.V. Micropaleophytological research into ancient strata. |
1966 |
| original |
Early Cambrian |
|
India(Himachal Pradesh) |
Sah,S.C.D. et al. Some significant palynomorphs from B Member of the Jutogh Formation of Simla Hills. |
1977 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Sinian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Carboniferous |
|
China(Inner Mongolia) |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Late Cambrian |
|
USSR |
Grenfell,H.R. Probable fossil Zygnematacean algal spores Genera |
1995 |