| details |
Late Ordovician |
|
Indiana |
Miller,M.A. et al. Upper Ordovician (Lower Richmondian) acritarchs and chitinozoans from southeastern Indiana, USA. |
1981 |
| details |
Missourian |
|
Oklahoma |
Wilson,L.R. et al. A paleoecological interpretation of the Francis Shale Formation, (Missourian), based upon palynology and Invertebrate paleontolty. |
1981 |
| details |
Bajocian |
|
|
Gonzales-Amicon,O.R. et al. Palynological data from the Bajocian (Cura Niyeu Formation), of the Sierra de Chacai County, Neuqu©n Basin, Argentina. |
1981 |
| details |
Late Wenlockian |
|
USSR(E.Kazakh Oblast) |
Grishina,T.S. et al. Stratigraphy of Silurian and Lower Devonian deposits of the Zaysan Belt system. |
1981 |
| details |
Precambriam |
Early Cambrian |
USSR(Yakut ASSR) |
Fayzulina,Z.Kh. et al. Plant microfossils, (Acritarchs), and their significance for correlation of Precambrian and Lower Cambrian deposits. |
1981 |
| details |
Precambriam |
Early Cambrian |
USSR(Irkutskaya Oblast) |
Fayzulina,Z.Kh. et al. Plant microfossils, (Acritarchs), and their significance for correlation of Precambrian and Lower Cambrian deposits. |
1981 |
| details |
Callovian |
|
|
Volkheimer,W. et al. Stratigraphic palynology of the Middle Jurassic Lotena Formation, (Neuqu©n Basin). (In: The Geology of the Province of San Luis) |
1981 |
| details |
Late Proterozoic |
|
China(Yunnan) |
Wang,F. Sinian microfossils from South-West China. |
1981 |
| details |
Late Ashgillian |
Early Llandoverian |
Canada(Anticosti Island) |
Duffield,S.L. et al. Acritarch biostratigraphy of the Ordovician-Silurian boundary beds and the Llandoverian, Anticosti Island,Quebec. |
1981 |
| details |
Ashgillian |
|
Canada(Anticosti Island) |
Duffield,S.L. et al. Acritarch biostratigraphy of Upper Ordovician-Lower Silurian strata of Anticosti Island, Quebec and implications for intracontinental correlation. |
1981 |
| details |
Late Tremadocian |
Early Arenigian |
Italy(Sardinia) |
Barca,S. et al. Discovery of Lower Ordovician acritarchs in the "Postgotlandiano' sequence of southwestern Sardinia (Italy)-Age and tectonic implications |
1981 |
| details |
Late Tremadocian |
Early Arenigian |
Italy(Sardinia) |
Barca,S. et al. Discovery of Lower Ordovician acritarchs in the "Postgotlandiano' sequence of southwestern Sardinia (Italy)-Age and tectonic implications |
1981 |
| details |
Late Tremadocian |
Arenigian |
China(Szechwan) |
Xing,Y. Microplants and chitinozoans from the Lower Ordovician Dachengsi Formation of Emeishan, Sichun. |
1980 |
| details |
Early Cambrian |
|
China |
Xing,Y. et al. Late Precambrian microflora of China. |
1980 |
| details |
Early Paleozoic |
|
Ghana |
Riegel,W. et al. Lower Paleozoic acritarchs of the Sekondi Series of Ghana (West Africa). |
1980 |
| details |
Tremadocian |
|
Spain |
Wolf,R. Acritarchs of the Tremadocian Keltiberien (northeast Spain). |
1980 |
| details |
Ordovician |
|
USSR |
Pykhova,N.G. The first results of a study of elements composition of microfossils. |
1980 |