| details |
Llanvirnian |
|
Belgium |
Martin,F. Cambrian-Ordovician acritarchs of the Massif du Brabant, Belgium. |
1975 |
| details |
Llanvirnian |
|
China(Shansi) |
Fu,J. The Ordovician group of micropalaeoflora from Xiliangsi and Jiancaogou Formation of Zhenba Shaanxi. |
1986 |
| details |
Llanvirnian |
Caradocian |
England(Cumberland) |
Millward,D. et al. Field and biostratigraphic evidence for an unconformity at the Base of the Eycott Volcanic Group in the English Lake District |
1992 |
| details |
Llanvirnian |
Caradocian |
England(Cumberland) |
Millward,D. et al. Field and biostratigraphic evidence for an unconformity at the Base of the Eycott Volcanic Group in the English Lake District |
1992 |
| details |
Llanvirnian |
Llandeilian |
Wales |
Young,T.P. Discussion of a revision of the age of the Hen-dy-capel Ooidal Ironstone, (Ordovician), Llanenga, North Wales. (T.P.Young and Reply T.P.Young) |
1993 |
| details |
Llanvirnian |
|
Tunisia |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Llanvirnian |
|
Belgium |
Brocke,R. et al. First appearance of selected Early Ordovician acritarch taxa from Peri-Gondwana. |
1995 |
| details |
Ludlovian |
Siedlce |
Poland |
Stempien,M. Ordovician and Silurian acritarchs of the Niestachow Sandstone Formation (Gory Swietokrzyskie Mountains) |
1990 |
| original |
Middle Arenigian |
|
China(Yunnan) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| original |
Middle Arenigian |
|
China(Yunnan) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| original |
Middle Arenigian |
Late Arenigian |
China(Yunnan) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| details |
Middle Arenigian |
|
Argentina(Salta) |
Rubinstein,C.V. et al. Acritarch biostratigraphy of the upper Tremadoc-Arenig of the Eastern Cordillera, northwestern Argentina: relationships with graptolite and trilobite faunas. |
1999 |
| details |
Middle Arenigian |
|
Argentina(Jujuy) |
Rubinstein,C.V. et al. Acritarch biostratigraphy of the upper Tremadoc-Arenig of the Eastern Cordillera, northwestern Argentina: relationships with graptolite and trilobite faunas. |
1999 |
| details |
Middle Arenigian |
|
Argentina(Salta) |
Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) |
2002 |
| details |
Middle Ordovician |
|
China(Hopei) |
Wang,X. et al. The Huanghuachang Section, potential as Global Stratotype for the base of the Middle Ordovician Series. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Nd |
|
Nd |
Servais,T. et al. Variability in the Ordovician acritarch Dicrodiacrodium |
1996 |
| details |
Ordovician |
|
Czechoslovakia(Bohemia) |
Strother,P.K. Acritarchs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |