| details |
Late Arenigian |
Early Llanvirnian |
Morocco |
Loeblich,A.R.,Jr. et al. Some new and revised organic-walled phytoplankton microfossil genera. |
1976 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Late Arenigian |
Early Llanvirnian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Arenigian |
Early Llanvirnian |
Czechoslovakia |
VavrdovЎ,M. Acritarch assemblages in the Arenig series of the Prague Basin, Czech Republic. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Arenigian |
|
Morocco |
Strother,P.K. Acritarchs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |