| details |
Llanvirnian |
Caradocian |
France(Aquitaine) |
Paris,F. The Paleozoic Aquitaine Basin-Biostratigraphy by chitinozoans, ostracods and tentaculites. |
1984 |
| details |
Early Gothlandian |
|
Pennsylvania |
Johnson,N.G. et al. Early Silurian plant microfossils of Central Pennsylvania-Biological and geological significance |
1985 |
| details |
Late Proterozoic |
|
Greenland |
Green,J.W. et al. Silicified microfossils from the Upper Proterozoic Limestone-Dolomite Series, central east Greenland. |
1985 |
| details |
Rhaetian |
|
England(Devonshire) |
Fisher,M.J. Palynology of sedimentary cycles in the Mercia Mudstone and Penarth Groups, (Triassic), of Southwest and Central England |
1985 |