| details |
Llanvirnian |
|
Wales(Gwynedd) |
Millward,D. et al. Field and biostratigraphic evidence for an unconformity at the Base of the Eycott Volcanic Group in the English Lake District |
1992 |
| details |
Early Llanvirnian |
|
Wales(Caernarvonshire) |
Molyneux,S.G. Advances and problems in Ordovician palynology in England and Wales |
1990 |
| details |
Llandeilian |
|
Wales |
Trythall,R.J.B. et al. Age and controls of Ironstone deposition (Ordovician) North Wales. |
1987 |
| details |
Late Arenigian |
|
Wales |
Molyneux,S.G. Appendix: Acritarchs and chitinozoa from the Arenig series of southwest Wales. (In: The Arenig Series in South Wales: Stratigraphy and palaeontology.) |
1987 |
| details |
Early Llanvirnian |
|
W.Germany(Rhineland) |
Servais,T. The Ordovician acritarch Frankea. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Early Llanvirnian |
|
W.Germany(Niedersachsen) |
Maletz,J. et al. Acritarchs and graptolites from the Early Llanvirn (Ordovician) of the Herscheider Schichten (Rheinisches Schiefergebirge, Germany). |
1993 |
| details |
Arenigian |
Early Llanvirnian |
United Kingdom |
Downie,C. Acritarchs in British stratigraphy |
1984 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Late Llanvirnian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Nd |
|
Nd |
Fatka,O. et al. The Ordovician acritarch Frankea: Some critical remarks. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Arenigian |
Llanvirnian |
Ireland(Isle Of Man) |
Molyneux,S.G. New evidence for the age of the Manx Group, Isle of Man. |
1979 |
| details |
Ordovician |
|
Germany(Rhineland) |
Koch,L. The Family Cyclopygidae (Trilobita), from the Ordovician of the Ebbe and Remscheid Anticline, (Rhenish Massif, Germany). |
1999 |
| details |
Middle Ordovician |
|
Germany |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Caradocian |
|
England(Shropshire) |
Turner,R.E. Reworked acritarchs from the type section of the Ordovician Caradoc series. Shropshire. |
1982 |
| details |
Late Arenigian |
|
England(Lancashire) |
Rushton,A.W.A. et al. The biostratigraphic age of the Skiddaw Group in the Black Combe Inlier, English Lake District. |
1989 |
| details |
Arenigian |
Llanvirnian |
England(Cumberland) |
Turner,R.E. et al. Acritarch dating of Arenig Volcanism in the Lake District. |
1979 |