| details |
Late Ludlovian |
Emsian |
Spain |
Lister,T.R. The acritarchs and chitinozoa from the Wenlockian and Ludlowvian series of the Ludlovian and Millichope areas, Shrophire. |
1970 |
| 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 |
Middle Siegenian |
Emsian |
France(Loire Atlantique) |
Moreau-Benoit,A. Stratigraphic palynology of the Silurian and Devonian in the southeast part of the Breton Massif, (Saint-Julien-de-Vouantes and Ancenis Synclinoria). |
1972 |
| details |
Early Famennian |
|
Germany(Rhineland) |
Jux,U. Phytoplankton from the Middle Upper Devonian (Nehdinian) of the Southwestern Bergisches Land, Rhenish Schiefergebirge. |
1975 |
| details |
Ludlovian |
Gedinnian |
Romania |
Iliescu,V. A Pridolian, (Uppermost Silurian), palynoprotistologic assemblage from the Moesian Platform--Romania. |
1975 |
| details |
Early Devonian |
|
China(Kwangsi) |
Kao,L.-D. Early Devonian spores and acritarchs from the Nakaoling Stage of Liujing, Kwangsi. |
1978 |
| details |
Pridolian |
|
Romania |
Givulescu,R. Fossil flora of Romania. (3rd Supplement) |
1978 |
| details |
Ludlovian |
Emsian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |