| details |
Late Ordovician |
Early Llandoverian |
Libya |
Grignani,D. et al. Palaeozoic and Mesozoic subsurface palynostratigraphy in the Al Kufrah Basin, Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |
| details |
Nd |
|
Nd |
Eiserhardt,K.H. The Acritarchs of the –jlemyrflintes. |
1992 |
| original |
Ashgillian |
|
Sweden(Gotland) |
Eiserhardt,K.H. The Acritarchs of the –jlemyrflintes. |
1992 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Pa?keviciene,L. Acritarchs from the Upper Ordovician of East Lithuania |
1993 |
| details |
Late Ordovician |
|
Oklahoma |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Stancliffe,R.P.W. et al. The acritarch genus Veryhachium Deunff,1954, emend., Sarjeant and Stancliffe,1994: A taxonomic restudy and a reassessment of its constituent species. |
1994 |
| details |
Caradocian |
Ashgillian |
E.Germany(Karl Marx) |
Heuse,T. Upper Ordovician acritarchs from the Frankenberger Zwischengebirge (Saxony) eastern Germany |
1994 |
| details |
Caradocian |
Ashgillian |
E.Germany(Karl Marx) |
Heuse,T. Upper Ordovician acritarchs from the Frankenberger Zwischengebirge (Saxony) eastern Germany |
1994 |
| details |
Early Ashgillian |
|
Saudi Arabia |
Jachowicz,M. Ordovician acritarch assemblages form Central and Northwestern Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Kunda |
|
Sweden |
Ribecai,C. et al. Arenigian acritarch from Horns Udde (Oland, Sweden). A preliminary report. |
1995 |
| details |
Caradocian |
Ashgillian |
Turkey |
Steemans,P. et al. Ordovician and Silurian cryptospores and miospores from southeastern Turkey. |
1996 |
| details |
Nd |
|
Nd |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Caradocian |
Wenlockian |
Nepal |
Sinha,H.N. et al. Record of Prolific and Indubitable acritarchs from the Lower Paleozoic strata of the Tethyan Garhwal Himalaya and age implication |
1996 |
| details |
Caradocian |
Wenlockian |
India(Himachal Pradesh) |
Sinha,H.N. et al. Taxonomy of Veryhachium complex from the Lower Paleozoic marine sediments of Tethyan Garhwal Himalaya, and their environmental significance. |
1996 |
| details |
Richmondian |
|
Missouri |
Wicander,R. et al. Stratigraphy and paleogeographic significance of an Upper Ordovician acritarch flora from the Maquoketa Shale, Northeastern Missouri, USA |
1999 |
| 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 |
| details |
Oandu |
Rakvere |
Lithuania |
Pa?keviciene,L. Taxonomical composition and distribution of acritarchs in the deposits of Oandu Ravere Regional Stages of the Middle Lithuanian Depression. |
2001 |