| 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 |
Early Jurassic |
Middle Jurassic |
China(Tibet) |
Xu,Y. Occurence and significance of the Early to Middle Jurassic microflora in Nylamo Xizang, (Tibet). |
1982 |
| details |
Early Jurassic |
Middle Jurassic |
Australia(Queensland) |
McKellar,J.L. Palynostratigraphy of core samples from GSQ Hughenden 7. |
1979 |
| details |
Early Eocene |
Middle Eocene |
Australia(W.Australia) |
Glover,J.E. et al. The Dunsborough Implement: An Aboriginal Biface from Southwestern Australia. |
1978 |
| details |
Early Eocene |
Middle Eocene |
Morocco |
Fechner,G.G. Selected palynomorphs from the Lower to Middle Eocene of the South Atlas Border Zone, (Morocco), and their environmental significance. |
1988 |
| details |
Late Paleocene |
Middle Eocene |
Louisiana |
Gregory,W.A. et al. Distribution of dinoflagellates in a subsurface marine Wilcox (Paleocene-Eocene) section in Southwest Louisiana |
1995 |
| details |
Early Cambrian |
Middle Cambrian |
Poland |
Pozarski,W. et al. New data on the Lower Cambrian at the Southern Margin of the Holy Cross Mountains. (Southeast Poland.) |
1981 |
| details |
Early Cambrian |
Middle Cambrian |
Canada(Newfoundland) |
Martin,F. et al. Late Early Cambrian and Early Middle Cambrian acritarchs from Manuels River, Eastern Newfoundland. |
1983 |
| details |
Early Cambrian |
Middle Cambrian |
Poland |
Moczydlowska,M. Acritarcha from the Cambrian of the borehole Okuniew LGI. |
1980 |
| details |
Early Cambrian |
Middle Cambrian |
USSR(Latvian SSR) |
Brangulis,A.P. et al. Stratigraphy of ancient Terrains in the transition zone of the Baltic and Moscow Syneclises |
1975 |
| details |
Early Cambrian |
Middle Cambrian |
Poland |
Moczydlowska,M. et al. Lower Cambrian acritarch zonation in southern Scandinavia and southeastern Poland. |
1986 |
| original |
Early Cambrian |
Middle Cambrian |
USSR(Siberia) |
Krylov,I.N. et al. An occurence of Cambrian microfossils in sediments of Baikonurskii Synclinorium |
1986 |
| details |
Early Cambrian |
Middle Cambrian |
USSR(Latvian SSR) |
Brangulis,A.P. et al. The history of stratigraphic studies of the Cambrian deposits of Latvia. (In: Ocherki Geologii Latvii. A.P. Brangulis, editor) |
1978 |
| details |
Early Cambrian |
Middle Cambrian |
USSR(Leningrad) |
Borovko,N.G. et al. The reference section of Cambrian and Ordovician boundry sediments at North-West Russian Plate (Izhora River) |
1984 |
| details |
Early Cambrian |
Middle Cambrian |
USSR(Lithuanian SSR) |
Kisnerius,Y.L. Key sections of the borehole "Stonishkaya" of the Lithuanian SSR. |
1974 |
| details |
Early Cambrian |
Middle Cambrian |
USSR(Baltic) |
Volkova,N.A. et al. Microflora. (In: Upper Precambrian and Cambrian paleontology of the East-European Platform.) |
1979 |
| details |
Early Cambrian |
Middle Cambrian |
Antarctica |
Brown,A.V. et al. Late Proterozoic to Devonian sequences of southeastern Australia, Antarctica and New Zealand and their correlation. (R.A.Cooper and G.W.Grindley, editors) |
1982 |