| details |
Early Cambrian |
Middle Cambrian |
Belgium |
Vanguestaine,M. Advances in Cambro-Ordovician stratigraphy using acritarchs in Ardenne, Ireland, England, Wales and eastern Newfoundland. |
1986 |
| details |
Atdabanian |
|
Canada(NWT,Mackenzie) |
Baudet,D. et al. Palynology of the Uppermost Proterozoic and Lowermost Cambrian Formations, Central MacKenzie Mountains, Northwest Canada. |
1989 |
| details |
Early Cambrian |
|
Poland |
Moczydlowska,M. Upper Proterozoic and Lower Cambrian acritarchs from Poland-Micropalaeontology biostratigraphy and thermal study |
1989 |
| 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 |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Cambrian |
|
Poland |
Moczydlowska,M. Acritarch biostratigraphy of the Lower Cambrian and the Precambrian-Cambrian boundary in southeastern Poland. |
1991 |
| details |
Early Cambrian |
|
Belgium |
Vanguestaine,M. The biostratigraphy of Cambrian-Ordovician acritarches of Belgium and adjacent area; Synthese and perspective. |
1992 |
| details |
Early Cambrian |
|
Poland |
Piskun,L.V. Paleophytic characteristics of the Upper Vendian and Cambrian of the Podlasie-Brest Depression |
1992 |
| details |
Early Cambrian |
|
USSR(Estonian SSR) |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Vendian |
|
India(Himachal Pradesh) |
Prasad,G.V.R. et al. Organic-walled microfossils from the Neoproterozoic black phosphatic stringers in the Gangolihat Dolomite, Lesser Himalaya, India. |
2004 |