| details |
Silurian |
Early Devonian |
USSR(Vologda) |
Batanova,G.P. et al. Age of Pre-Middle Devonian sediments of the Volgograd District. |
1972 |
| details |
Late Devonian |
Early Carboniferous |
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1984 |
| details |
Late Devonian |
Early Carboniferous |
Bolivia |
Rocha-Campos,A.C. et al. Biostratigraphy and correlations. (In: The Carboniferous of the World II. Australia, Indian Subcontinent, South Africa, South America and North Africa. C. Martnez Daz et al, editors) |
1985 |
| 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 |
Late Precambrian |
Early Cambrian |
China(Szechwan) |
Wang,F. et al. New discovery of Baltisphaeridium |
1984 |
| details |
Precambriam |
Early Cambrian |
USSR(Irkutskaya Oblast) |
Faizulina,Z.K. et al. Precambrian and Early Cambrian plant microfossils of the South West Prebaikal Irkutsk Amphitheatre and Mid-Botuobinsk |
1976 |
| details |
Vendian |
Early Cambrian |
USSR(Siberia) |
Keller,B.M. The Vendian-Cambrian boundary |
1982 |
| details |
Vendian |
Early Cambrian |
USSR(Irkutskaya Oblast) |
Volkova,N.A. et al. Discussion of "Upper Mothian acritarchs of the Irkutsk Basin" by N.G.Pykhova |
1976 |
| details |
Sinian |
Early Cambrian |
China(Kweichow) |
Wang,F. et al. New material of microbial fossils from Sinian-Cambrian age sediments in Abazhai-Qingzhen and Wuhe-Taijiang, Guizhou Province. (In: The Upper Precambrian and Sinian-Cambrian boundary in Guizhou) |
1984 |
| 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 |
Ordovician |
Devonian |
Algeria |
de Jekhowsky,B. Organic microfossils (spores, hystrichospheres, chitinozoans, etc.), of the Saharan Pre-Quaternary |
1965 |
| details |
Albian |
Cenomanian |
India(Rajasthan) |
Das Gupta,S.K. The stratigraphy of the West Rajasthan Shelf |
1977 |
| details |
Albian |
Cenomanian |
India(Rajasthan) |
Lukose,N.G. Palynology of the subsurface sediments of Manhera tibba structure, Jaisalmer, western Rajasthan, India. |
1974 |
| details |
Devonian |
Carboniferous |
USSR(Ukrainian SSR) |
Medvedeva,A.M. Palynological investigation of Petroleum |
1978 |
| details |
Llanvirnian |
Caradocian |
England(Shropshire) |
Jenkins,W.A.M. Ordovician chitinozoa from Shropshire. |
1967 |