| original |
Tremadocian |
|
England(Shropshire) |
Downie,C. An assemblage of microplankton from the Shineton Shale (Tremadocian) |
1958 |
| details |
Tremadocian |
|
England |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Acritarchs from Klabava Shales (Arenig). |
1972 |
| details |
Tremadocian |
|
France(Herault) |
Martin,F. Acritarchs of the Lower Ordovician of the Montagne Noire (Herault, France). |
1972 |
| details |
Llanvirnian |
Silurian |
Bulgaria |
Kalvacheva,R.K. Preliminary results from palynological studies of the Lower Palaeozoic in the Iskur Gorge. |
1972 |
| details |
Llanvirnian |
Llandeilian |
Bulgaria |
Kalvacheva,R.K. et al. Statistical analysis on several species of the genus Veryhachium (Acritarcha), from the Ordovician in the Iskur Gorge, (Bulgaria). |
1973 |
| details |
Tremadocian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Llanvirnian |
|
Bulgaria |
Kalvacheva,R.K. et al. Occurence of acritarchs in the Lower Paleozoic in the Iskur Gorge. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Tremadocian |
Early Arenigian |
S.Ireland |
Gardiner,P.R.R. et al. Cambrian and Ordovician microfossils from south-east Ireland and their implications. |
1971 |
| details |
Late Tremadocian |
Arenigian |
China(Yunnan) |
Fang,X. Ordovician micropaleoflora in Kunming-Luquan Region, Yunnan Province, and its stratigraphical significance. |
1987 |
| details |
Arenigian |
|
China(Yunnan) |
Fang,X. Ordovician micropaleoflora in Kunming-Luquan Region, Yunnan Province, and its stratigraphical significance. |
1987 |
| details |
Tremadocian |
|
England(Shropshire) |
Rasul,S.M. et al. The stratigraphic distribution of Tremadoc acritarchs in the Shineton Shales succession, Shropshire, England. |
1974 |
| details |
Caradocian |
|
Belgium |
Martin,F. et al. The Caradocian Flysch of Ombret. |
1970 |
| details |
Carboniferous |
|
Spain |
Valenzuela,J.M.G. et al. Aspects of the paleoecology of the Santos de Maimona Basin; Acritarchs and spores. |
1990 |
| details |
Arenigian |
Llanvirnian |
Belgium |
Martin,F. On the age of the shales of the Caledonian Belt of the Sambre-Meuse at Ombret. |
1969 |
| details |
Tremadocian |
Arenigian |
France(Aude) |
Bessiere,G. et al. The Lower Palaeozoic in the Mouthoumet Massif (Aude, France) replaced in the South Hercynian area; Revision and implications. |
1988 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |