| original |
Late Ordovician |
|
Oklahoma |
Loeblich,A.R.III Morphology, ultrastructure and distribution of Paleozoic acritarchs. |
1970 |
| details |
Ashgillian |
|
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. 2: Index to Parts 1 and 2. |
1977 |
| details |
Ashgillian |
|
Oklahoma |
Loeblich,A.R.,Jr. et al. Some Middle and Late Ordovician microphytoplankton from Central North America. |
1978 |
| original |
Late Ordovician |
|
Oklahoma |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Vol.5 Acritarcha. |
1979 |
| details |
Late Ordovician |
|
Oklahoma |
Tappan,H. The Paleobiology of Plant Protists. |
1980 |
| details |
Llanvirnian |
Late Llandeilian |
Canada(Quebec) |
Martin,F. Ordovician chitinozoa and acritarchs of the Saint-Laurent Platform, (Quebec and Southeast Ontario). |
1983 |
| details |
Llanvirnian |
Late Llandeilian |
Canada(Ontario) |
Martin,F. Ordovician chitinozoa and acritarchs of the Saint-Laurent Platform, (Quebec and Southeast Ontario). |
1983 |
| details |
Middle Caradocian |
Late Caradocian |
United Kingdom |
Downie,C. Acritarchs in British stratigraphy |
1984 |
| details |
Late Soudleyan |
Onnian |
England(Shropshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. |
1984 |
| details |
Early Ashgillian |
Middle Ashgillian |
Canada(Anticosti Island) |
Jacobson,S.R. et al. Acritarch biostratigraphy of the Dicellograptus complanatus graptolite zone from the Vaureal form Ation, (Ashgillian), Anticosti Island, Quebec, Canada. |
1985 |
| details |
Late Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Caradocian |
Ashgillian |
Sweden(Gotland) |
Eiserhardt,K.H. The Acritarchs of the –jlemyrflintes. |
1992 |
| details |
Ashgillian |
|
China(Zeijing) |
He,S.-C. et al. Late Ordovician acritarchs from changwu Formation of Jiangshan, Zhejiag, China |
1993 |
| details |
Caradocian |
|
Iran |
Ghavidel-Syooki,M. Acritarch biostratigraphy of the Palaeozoic rock units in the Zagros Basin, Southern Iran. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Late Volkov |
Early Kunda |
Sweden |
Ribecai,C. et al. Quantitative biostratigraphy applied to Volkhov-Kunda Palynife, (Acritarchs) sequences of northern Oland. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Middle Ordovician |
Late Ordovician |
Iran |
Ghavidel-Syooki,M. Acritarch biostratigraphy and palaeogeography of Lower Palaeozoic rock units at Southwestern Kashmar City, Central Iran. |
1998 |
| details |
Llanvirnian |
Ashgillian |
Iran |
Ghavidel-Syooki,M. Palynostratigraphy and paleobiogeography of the Lower Paleozoic sequence in the northeastern Alborz Range (Kopet-Dagh Region) of Iran. |
2001 |