| details |
Llanvirnian |
|
France(Ille-et-Vilaine) |
Deunff,J. et al. New observations and details on Lower Paleozoic acritarchs with large polar apertures. |
1974 |
| details |
Llanvirnian |
|
France(Ille-et-Vilaine) |
Deunff,J. et al. New observations and details on Lower Paleozoic acritarchs with large polar apertures. |
1974 |
| details |
Arenigian |
Early Llanvirnian |
Ireland(Isle Of Man) |
Molyneux,S.G. New evidence for the age of the Manx Group, Isle of Man. |
1979 |
| details |
Llanvirnian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Caradocian |
Wenlockian |
Nepal |
Sinha,H.N. et al. Record of Prolific and Indubitable acritarchs from the Lower Paleozoic strata of the Tethyan Garhwal Himalaya and age implication |
1996 |
| details |
Late Cambrian |
Early Ordovician |
Algeria |
Stricanne,L. et al. A statistical approach to classification of the Cambro-Ordovician galeate acritarch plexus |
2002 |