| original |
Late Marshbrookian |
Onnian |
England(Shropshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. |
1984 |
| 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 Ordovician |
|
China(Hupei) |
Yin,L.-M. New forms of acritarch from Early Ordovician sediments in Yichang, Hubei, China. |
1994 |
| details |
Ordovician |
|
Nd |
Servais,T. An annotated bibliographical review of Ordovician acritarchs |
1997 |