| details |
Middle Paleozoic |
Late Paleozoic |
USSR(Ukrainian SSR) |
Bagdasaryan,L.L. Micropaleophytological studies of Paleozoic oil in the South European part of the USSR. (In: Palynology in Petroleum Geology. N.M.Ivanova, editor) |
1971 |
| details |
Carboniferous |
Early Permian |
USSR(Urals) |
Medvedeva,A.M. Palynological investigation of Petroleum |
1978 |
| details |
Middle Riphean |
Late Riphean |
USSR(Yakut ASSR) |
Lopukhin,A.S. Acritarchs of the Proterozoic and Early Paleozoic of Tyan-Shan. (In: Palynology of Proterophyte and Palaeophyte.S.N.Naumova, editor) |
1974 |
| details |
Middle Ordovician |
Early Gothlandian |
USSR(Yaroslav) |
Aristova,K.E. et al. Upper Ordovician and Silurian of the Moscow Syneclise |
1977 |
| details |
Early Keuper |
|
W.Germany(Bavaria) |
Heunisch,C. Transport and environment analysis of Franconian Lower Keuper and palynomorph study |
1986 |
| details |
Ludlovian |
Downtonian |
Wales |
Warren,P.T. The significance of recent research in Britain on the Ludovian-Downtonian boundary. (In: The boundary between the Silurian and Devonian and Biostratigraphy of the Silurian. D.V.Nalivkin, editors) |
1971 |
| details |
Gorstian |
Ludfordian |
Wales(Brecknockshire) |
Dorning,K.J. Silurian acritarch distribution in the Ludlovian shelf Sea of South Wales and Welsh Borderland. (In: Microfossils from Recent and Fossil Shelf Seas. J.W.Neale and M.D. Brasier. editors) |
1981 |
| details |
Gorstian |
Ludfordian |
Wales(Carmarthenshire) |
Dorning,K.J. Silurian acritarch distribution in the Ludlovian shelf Sea of South Wales and Welsh Borderland. (In: Microfossils from Recent and Fossil Shelf Seas. J.W.Neale and M.D. Brasier. editors) |
1981 |
| details |
Homerian |
|
Wales(Montgomeryshire) |
Dorning,K.J. et al. The Silurian carbonate shelf microflora- acritarch distribution in the Much Wenlock Limestone Formation. (In: Micropalaeontology of Carbonate Environments. M.B.Hart, editor) |
1987 |
| details |
Riphean |
Cambrian |
Yugoslavia |
Pantic,N.K. The importance of paleopalynological investigation of metamorphic rocks in central and southeastern Europe |
1975 |