| details |
Llandeilian |
|
Wales(Carmarthenshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Llandeilo series, South Wales. |
1985 |
| details |
Caradocian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Tremadocian |
Early Arenigian |
Czechoslovakia |
Fatka,O. Early Arenig acritarchs from the Lower Klabava Formation (Prague Basin, Czechoslovakia). |
1992 |
| details |
Late Tremadocian |
Early Arenigian |
Czechoslovakia |
Fatka,O. Chitinozoans and acritarchs in Latest Tremadoc - Early Arenig sediments of the Prague Basin, Czech Republic. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Early Ordovician |
|
France |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |