| details |
Blackriveran |
Rocklandian |
Canada(Ontario) |
Bunner,W.D. et al. A new species of Dicommopalla (Acritarcha) from the Middle Ordovician Simcoe Group of Southern Ontario, Canada. |
1989 |
| details |
Arenigian |
Llanvirnian |
Morocco |
Rauscher,R. et al. Palynological dating of the Moroccan Tazekka Schists: Consequence on the structural evolution of the Hercynian Basement of the eastern Meseta. |
1982 |
| details |
Llanvirnian |
Llandeilian |
Spain |
Fombella,M.A. et al. New palynological results from the Oville Formation at Southwest Vozmediano, Leon (northwestern Spain). (In: Commision Internationale De |
1996 |
| details |
Late Cambrian |
Late Ordovician |
Estonia |
Paalits,I. Biostratigraphy: Acritarchs |
1990 |
| details |
Late Ordovician |
Late Gothlandian |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Nd |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Tremadocian |
|
Spain |
Wolf,R. Acritarchs of the Tremadocian Keltiberien (northeast Spain). |
1980 |
| details |
Tremadocian |
|
USSR(Moscow Basin) |
Aristova,K.E. Typical assemblages of Ordovician and Silurian microfossils from the Moscow Syncline. |
1980 |
| details |
Ordovician |
|
Canada(Quebec) |
Duffield,S.L. Biostratigraphy and taxonomy of Lower Silurian acritarchs from Anticosti Island,Quebec. |
1981 |
| details |
Ashgillian |
|
Canada(Anticosti Island) |
Duffield,S.L. et al. Acritarch biostratigraphy of Upper Ordovician-Lower Silurian strata of Anticosti Island, Quebec and implications for intracontinental correlation. |
1981 |
| details |
Arenigian |
|
Baltic |
Turner,R.E. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. |
1984 |
| details |
Arenigian |
|
Baltic |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Late Ordovician |
|
USSR(Kaliningrad) |
Pa?keviciene,L. Middle Ordovician acritarchs from Lithuania and Kaliningrad District |
1993 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Pa?keviciene,L. Middle Ordovician acritarchs from Lithuania and Kaliningrad District |
1993 |
| details |
Hirnantian |
|
Wales(Montgomeryshire) |
Barron,H.F. Moyeria cabottii from the Ordovician of Wales, U.K. |
1990 |
| original |
Arenigian |
|
Baltic |
Eisenack,A. On the systematics of some Palaeozoic Hystrichospheres (Acritarch) from the Baltic Region. |
1969 |