| details |
Early Arenigian |
|
Argentina(Salta) |
Rubinstein,C.V. et al. Acritarch biostratigraphy from the Upper Tremadoc - Arenig of the Eastern Cordillera. relationship with graptolite and trilobite fauna. |
1998 |
| details |
Middle Arenigian |
|
Argentina(Salta) |
Rubinstein,C.V. et al. Acritarch biostratigraphy from the Upper Tremadoc - Arenig of the Eastern Cordillera. relationship with graptolite and trilobite fauna. |
1998 |
| details |
Ordovician |
|
Germany(Rhineland) |
Koch,L. The Family Cyclopygidae (Trilobita), from the Ordovician of the Ebbe and Remscheid Anticline, (Rhenish Massif, Germany). |
1999 |
| details |
Middle Arenigian |
|
Czechoslovakia(Bohemia) |
Fatka,O. et al. Morphologic variability in two populations of Arbusculidium filamentosum (Vavrdova 1965), Vavrdova,1972. |
1999 |
| details |
Middle Arenigian |
|
China(Szechwan) |
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 |
Late Arenigian |
|
China(Hupei) |
Tongiorgi,M. et al. Differentiation and spread of the Baltic Acritarch Province (Arenig-Llanvirn). |
1999 |
| details |
Late Llanvirnian |
|
China(Guizhou) |
Li,J. et al. Llanvirnian acritarchs from the Yangtze Platform of South China. |
1999 |
| details |
Llanvirnian |
Caradocian |
Saudi Arabia |
Molyneux,S.G. et al. Palynology of a problematic lower Palaeozoic lithofacies in the central Arabian Basin, Saudi Arabia. |
2000 |
| details |
Early Tremadocian |
Middle Tremadocian |
S.Ireland(Kerry) |
Todd,S.P. et al. An Early Ordovician age for the Annascaul Formation of the southeast Dingle Peninsula southwest Ireland. |
2000 |
| details |
Late Arenigian |
|
Pakistan |
Quintavalle,M. et al. Lower to Middle Ordovician acritarchs and chitinozoans from northern Karakorum Mountains, Pakistan. |
2000 |
| details |
Late Arenigian |
|
China(Guizhou) |
Brocke,R. et al. Upper Arenigian to Lower Llanvirnian acritarch assemblages from South China: a preliminary evaluation. |
2000 |
| details |
Late Arenigian |
|
China(Hupei) |
Brocke,R. et al. Upper Arenigian to Lower Llanvirnian acritarch assemblages from South China: a preliminary evaluation. |
2000 |
| details |
Late Arenigian |
|
China(Szechwan) |
Brocke,R. et al. Upper Arenigian to Lower Llanvirnian acritarch assemblages from South China: a preliminary evaluation. |
2000 |
| details |
Early Ordovician |
Middle Ordovician |
S.Ireland(Kildare) |
Maziane-Serraj,N. et al. Ordovician and Silurian acritarch assemblages from the west Leinster and Slievenamon areas of southeast Ireland. |
2000 |
| details |
Late Llandoverian |
Early Wenlockian |
S.Ireland(Kildare) |
Maziane-Serraj,N. et al. Ordovician and Silurian acritarch assemblages from the west Leinster and Slievenamon areas of southeast Ireland. |
2000 |