original |
Late Cambrian |
|
USSR(Yaroslav) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
original |
Middle Cambrian |
Late Cambrian |
Belgium |
Ribecai,C. et al. Latest Middle-Late Cambrian acritarchs from Belgium and northern France. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
original |
Middle Cambrian |
Late Cambrian |
France(Ardennes) |
Ribecai,C. et al. Latest Middle-Late Cambrian acritarchs from Belgium and northern France. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
original |
Nd |
|
Nd |
Parsons,M.G. et al. Acritarch microfloral succession from the Late Cambrian and Ordovician (Early Tremadoc) of Random Island, Eastern Newfoundland, and its comparison to coeval microfloras, particularly those of the Eastern European Platform. |
2000 |