| original |
Early Cambrian |
|
Canada(Alberta) |
Downie,C. Lower Cambrian acritarchs from Scotland, Norway, Greenland and Canada. |
1982 |
| details |
Early Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Cambrian |
|
China(Inner Mongolia) |
Sun,S. The new discovery of fossil microplants in the Jianshan Formation of the Bayan Obo Group, Inner Mongolia. |
1992 |
| details |
Early Cambrian |
|
Canada(Alberta) |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |