| original |
Late Llanvirnian |
|
E.Germany(Rostock) |
Burmann,G. Further organic microfossils from the Lower Ordovician. |
1970 |
| details |
Nd |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Soudleyan |
|
Wales(Gwynedd) |
Barron,H.F. Moyeria cabottii from the Ordovician of Wales, U.K. |
1990 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Llanvirnian |
|
Belgium |
Servais,T. et al. Lower Llanvirn, (Ordovician), graptolites and acritarchs from the Assise de Huy Bande de Sambre-et-Meuse, Belgium. |
1993 |
| details |
Early Llanvirnian |
|
England |
Brocke,R. et al. First appearance of selected Early Ordovician acritarch taxa from Peri-Gondwana. |
1995 |
| details |
Early Llanvirnian |
|
Wales |
Brocke,R. et al. First appearance of selected Early Ordovician acritarch taxa from Peri-Gondwana. |
1995 |
| details |
Late Arenigian |
|
Nd |
Brocke,R. et al. First appearance of selected Early Ordovician acritarch taxa from Peri-Gondwana. |
1995 |
| details |
Late Arenigian |
|
Morocco |
Brocke,R. et al. First appearance of selected Early Ordovician acritarch taxa from Peri-Gondwana. |
1995 |
| details |
Late Arenigian |
|
Czechoslovakia(Bohemia) |
Brocke,R. et al. First appearance of selected Early Ordovician acritarch taxa from Peri-Gondwana. |
1995 |
| details |
Ordovician |
|
Baltic |
Servais,T. Paleobiogeography of Ordovician acritarchs some general considerations. |
1995 |
| details |
Llanvirnian |
Llandeilian |
Nd |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Nd |
|
Nd |
Servais,T. Some considerations on acritarch classification |
1996 |
| details |
Ordovician |
|
Nd |
Servais,T. An annotated bibliographical review of Ordovician acritarchs |
1997 |