| details |
Actonian |
Ashgillian |
Worldwide |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Caradocian |
|
USSR(Lithuanian SSR) |
Pa?keviciene,L. Middle Ordovician acritarchs from Lithuania and Kaliningrad District |
1993 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Pa?keviciene,L. Acritarchs from the Upper Ordovician of East Lithuania |
1993 |
| details |
Caradocian |
|
USSR(Kaliningrad) |
Pa?keviciene,L. Middle Ordovician acritarchs from Lithuania and Kaliningrad District |
1993 |
| details |
Late Llanvirnian |
Middle Ashgillian |
USSR(Estonian SSR) |
Uutela,A. et al. Ordovician acritarchs from the Rapla borehole, Estonia |
1991 |
| original |
Late Llanvirnian |
|
USSR(Estonian SSR) |
Uutela,A. et al. Ordovician acritarchs from the Rapla borehole, Estonia |
1991 |
| details |
Llanvirnian |
Ashgillian |
USSR(Estonian SSR) |
Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. |
1989 |
| details |
Ashgillian |
|
USA(Mid-Continent) |
Martin,F. Late Ordovician and Early Silurian acritarchs. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Caradocian |
Ashgillian |
Turkey |
Steemans,P. et al. Ordovician and Silurian cryptospores and miospores from southeastern Turkey. |
1996 |
| details |
Middle Ordovician |
|
Sweden |
GŠ³rka,H. Middle Ordovician (Viruan) acritarchs and Prasinophyceae from the Smedsby Gard No.1 borehole in (Gotland, Sweden). |
1987 |
| details |
Ashgillian |
|
Portugal |
Elaouad-Debbaj,Z. Late Ordovician acritarches of the Bucaco Syncline (Portugal); systematics-biostratigraphy-paleogeographic interests. |
1978 |
| details |
Ashgillian |
|
Portugal |
Martin,F. Late Ordovician and Early Silurian acritarchs. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Late Ordovician |
|
Oklahoma |
Tappan,H. The Paleobiology of Plant Protists. |
1980 |
| original |
Late Ordovician |
|
Oklahoma |
Loeblich,A.R.III Morphology, ultrastructure and distribution of Paleozoic acritarchs. |
1970 |
| details |
Late Ordovician |
|
Oklahoma |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Hirnantian |
|
Norway |
Smelror,M. et al. Upper Ordovician-Lower Silurian strata and biota from offshore South Norway |
1997 |
| details |
Nd |
|
Nd |
Eiserhardt,K.H. Orthosphaeridium rectangulare (Eisenack,1963), (Acritarcha), from a Ojlemyrflint Erratic (Sweden). |
1985 |