| details |
Late Givetian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Givetian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Givetian |
|
W.Germany(Bavaria) |
Moreau-Benoit,A. Palynological and planktonic research on the Devonian and some Silurian formations of the southeast Massif Armoricain. |
1974 |
| details |
Late Givetian |
|
W.Germany(Bavaria) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Givetian |
|
France(Herault) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Couvinian |
|
France |
Deunff,J. Planktonic microorganisms (Hystrichospheres) in the Devonian of the Armoricain Massif. |
1954 |
| details |
Late Cambrian |
|
USSR(Estonian SSR) |
Eisenack,A. On Hystrichospheres and other microffossils of the Baltic Silurian and Cambrian |
1951 |
| details |
Harnagian |
Onnian |
England(Shropshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. |
1984 |
| details |
Edenian |
|
Kentucky |
Jacobson,S.R. Acritarchs from the Upper Ordovician Clays Ferry Formation, Kentucky, USA. |
1978 |
| details |
Early Tremadocian |
Early Ashgillian |
Poland |
Jagielska,L. Microspores of the older Palaeozoic from Bore-Hole Uszkowce 1. |
1962 |
| original |
Early Ordovician |
Middle Ordovician |
USSR(Pre-Baltic) |
Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance |
1959 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Early Maestrichtian |
|
Greenland |
Nиhr-Hansen,H. Dinoflagellate cyst biostratigraphy of the Upper Cretaceous Black Mudstones between Niaqornat and Ikorfat of the North coast of Nuussuaq West Greenland |
1994 |
| details |
Early Maastrichtian |
|
Netherlands |
Lobenstein,J.J. Microscopic investigation of the Flints from Zuid-Limburg |
1972 |
| original |
Early Gothlandian |
|
USSR(Baltic) |
Eisenack,A. Hystrichospheres and related forms in the Baltic Silurian. |
1938 |
| details |
Early Gothlandian |
|
USSR(Baltic) |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Caradocian |
|
Poland |
Jagielska,L. Preliminary note on microspores from the Ordovician of Brzeziny and Zbrza in the Swiety Krzyz Mts. |
1962 |