| details |
Emsian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Wenlockian |
|
Romania |
Iordan,M. et al. Litho and biostratigraphy of the Paleozoic Sequences in the Oprisor and Girla Mare Boreholes, (southwestern part of the Moesian Platform). |
1985 |
| details |
Early Devonian |
|
Romania |
Givulescu,R. Fossil flora of Roumania. Second Supplement, Second Part. |
1974 |
| details |
Ludlovian |
|
France(Manche) |
Deunff,J. et al. The Ludlovian microplankton from the submerged formations of Les Minquiers (Manche), and its place in the distribution of the Silurian paleoplankton. |
1971 |
| details |
Early Devonian |
|
Romania |
Beju,D. Some spores, acritarchs and chitinozoans of Lower Devonian age of the Moesian Platform (Rumania) |
1967 |
| original |
Emsian |
|
Spain |
Cramer,F.H. Microplankton from three Palaeozoic formations in the Province of Leon, northwest Spain. |
1964 |