| original |
Soudleyan |
Onnian |
England(Shropshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. |
1984 |
| details |
Caradocian |
Early Ashgillian |
Jordan |
Keegan,J.B. et al. Palynostratigraphy of the Lower Palaeozoic, Cambrian to Silurian, sediments of the Hashemite Kingdom of Jordan. (In: Special Issue: Circum-Mediterranean Palynology. B.Owens and H.Visscher, editors) |
1990 |
| details |
Llandeilian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Arenigian |
Early Llanvirnian |
China(Hupei) |
Yin,L. Early Ordovician acritarchs from Hunjiang Region, Jilin and Yichang Region, Hubei, China. |
1995 |
| details |
Caradocian |
Ludlovian |
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 |