| details |
Ladinian |
|
England(Derbyshire) |
Warrington,G. Micropalaeontology. (In: Geology of the Country north of Derby: Memoir for 1:50 000 Geological Sheet 125: D.V. Frost and J.G.O. Smart, editors) |
1979 |
| details |
Ordovician |
|
Bulgaria |
Sergeeva,L.A. et al. On the Paleozoic age of the metamorphic rocks in Stradza |
1979 |
| details |
Silurian |
|
USSR(Orenburg) |
Ivanova,T.D. et al. To the structure of Lower Paleozoic sediments in the Orenburgskoe Priural'e. |
1979 |
| details |
Late Bajocian |
Middle Bathonian |
England |
Fenton,J.P.G. et al. Dinoflagellate cysts and acritarchs from Upper Bajocian to Middle Bathonian strata of Central and Southern England. |
1980 |
| details |
Late Bajocian |
Middle Bathonian |
England |
Fenton,J.P.G. et al. Dinoflagellate cysts and acritarchs from Upper Bajocian to Middle Bathonian strata of Central and Southern England. |
1980 |
| details |
Early Llandoverian |
Middle Llandoverian |
Spain |
Hafenrichter,M. The lower and upper boundary of the Ordovician system of some selected regions, (Celtiberia, Eastern Sierramorena) in Spain. Part 2. The Ordovician/Silurian bounday in Spain. |
1980 |
| details |
Famennian |
|
USSR(Siberia) |
Nadler,Y.S. et al. Palynological characteristics of Famennian deposits of the Sayano-Altay Mountain Region. |
1980 |
| details |
Late Ordovician |
Early Gothlandian |
Ghana |
Bar,P. et al. Latest Ordovician to Earliest Silurian microfloras from the Lower Sekondian Series of Ghana, (West Africa), and their relationship to those from the Itaim Formation of the Maranhao Basin in Northeast Brazil. |
1980 |
| details |
Tremadocian |
Early Arenigian |
Spain |
Wolf,R. The Lower and Upper boundary of the Ordovician System of some selected regions, (Celtiberia, Eastern Sierra Morena) in Spain. Part 1: The Lower Ordovician Sequence of Celtiberia. |
1980 |
| details |
Late Llanvirnian |
Caradocian |
USSR(Ukrainian SSR) |
Tsegelnyuk,P.D. Ordovician stratigraphy of the Southwestern Region of the Russian Platform |
1980 |
| details |
Cambrian |
|
USSR(Baltic) |
Bagdasaryan,L.L. The significance of microphytofossils in the solving of some problems in petroleum geology. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Early Callovian |
|
USSR(Arkhangelsk Oblast) |
Teodorovich,V.I. Grounds for the age determination of Middle Jurassic-Lower Callovian strata of the Cis-Timan area |
1980 |
| details |
Early Callovian |
|
USSR(Arkhangelsk Oblast) |
Teodorovich,V.I. Grounds for the age determination of Middle Jurassic-Lower Callovian strata of the Cis-Timan area |
1980 |
| details |
Anisian |
|
Ireland(Isle Of Man) |
Wilkinson,I.P. et al. Offshore micropalaeontological biostratigraphy of southern and western Britain. |
1980 |
| details |
Frasnian |
|
Australia(W.Australia) |
Playford,G. et al. Late Devonian acritarchs from the Carnarvon Basin, Western Australia. |
1981 |
| details |
Early Frasnian |
|
France(Pas-de-Calais) |
Deunff,J. Preliminary observations on the paleophytoplankton of a cutting from Caffiers, (Givetien - Frasnien du Boulnnais, France). |
1981 |
| details |
Frasnian |
|
Australia(W.Australia) |
Playford,G. Late Devonian acritarch from the Gneudna Formation in the Western Carnarvon Basin, Western Australia. |
1981 |