| details |
Tremadocian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Tremadocian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Devonian |
|
USSR(Mountain Altai) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Tremadocian |
|
France(Herault) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Arenigian |
|
China(Szechwan) |
Fang,X. Ordovician microflora from Ningqiang (Shaanxi) and Guangyuan (Sichuan) and its sedimentary environment. |
1990 |
| details |
Arenigian |
|
China(Shansi) |
Fang,X. Ordovician microflora from Ningqiang (Shaanxi) and Guangyuan (Sichuan) and its sedimentary environment. |
1990 |
| details |
Llanvirnian |
Baoto |
China(Szechwan) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Llanvirnian |
Baoto |
China(Shansi) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Cambrian |
Tremadocian |
Belgium |
Herbosch,A. et al. Study of the lithostratigraphic, biostratigraphic and sedimentology of the Lessines borehole (Southern Boarder of the Brabant Massive, Belgium) |
1991 |
| details |
Early Tremadocian |
|
W.Germany(Bavaria) |
Reitz,E. Acritarchs of Early Tremadoc sediments in the Western Frankenwald area, Northeast Bavaria. |
1991 |
| details |
Arenigian |
Llandeilian |
Belgium |
Servais,T. Contribution to the stratigraphy of the Ordovician Rigenee Formation (Brabant Massif, Belgium) with a preliminary study on acritarchs. |
1991 |
| details |
Arenigian |
Llandeilian |
Belgium |
Servais,T. Contribution to the stratigraphy of the Ordovician Rigenee Formation (Brabant Massif, Belgium) with a preliminary study on acritarchs. |
1991 |
| details |
Late Cambrian |
Early Tremadocian |
Italy(Sardinia) |
Pittau,P. On the Cambrian - Ordovician limit in the Rhabdinopora flabellifo (Eichw.) bearing shales of the Iglesiente Platform: Accounts through acritarchs. |
1991 |
| 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 |
Tremadocian |
|
Austria |
Reitz,E. et al. Palynological evidence for Lower Ordovician rocks (Tremadoc and Arenig) in the northern Greywacke zone (Eastern Alps) |
1992 |
| details |
Tremadocian |
|
Turkey |
Dean,W.T. et al. Ordovician biostratigraphic correlation in Southern Turkey. (In: Global Perspectives on Ordovician Geology. B.D. Webby and J.R. Laurie, editors) |
1992 |
| details |
Tremadocian |
Arenigian |
Turkey |
Dean,W.T. et al. Ordovician biostratigraphic correlation in Southern Turkey. (In: Global Perspectives on Ordovician Geology. B.D. Webby and J.R. Laurie, editors) |
1992 |