| original |
Early Ordovician |
|
Sweden |
Eisenack,A. New types of Baltic Silurian Hystrichospheres and new species. |
1959 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. Microfossils from the Baltic Ordovician. 2: Vaginatenkalk to Lyckholmer Stufe. |
1962 |
| details |
Nd |
|
Nd |
Eisenack,A. Some recent observations on Hystrichosphaeridium |
1962 |
| details |
Nd |
|
Nd |
Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. |
1963 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Llandeilian |
|
W.Germany(Baden) |
Bachmann,A. Micropalaeontological investigation of the Kuckersit-Kalk |
1967 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. On the reproduction of Palaeozoic hystrichospheres. |
1968 |
| details |
Early Ordovician |
|
Sweden |
Eisenack,A. On the reproduction of Palaeozoic hystrichospheres. |
1968 |
| details |
Early Ordovician |
|
Sweden |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Early Ordovician |
|
Sweden |
Johansson,H.G. et al. Notes on a new locality at Ljungsbro in the Lower Ordovician of Ostergotland, Southern Sweden. |
1972 |
| details |
Nd |
|
Nd |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1973 |
| details |
Early Gothlandian |
|
USSR(European) |
Aristova,K.E. et al. Substantiation of the Early-Silurian age of rocks of the Moscovian Syneclise in the light of Actual problems of its tectonic development and oil and Gas Content |
1975 |
| details |
Late Llandoverian |
Wenlockian |
USSR(Moscow) |
Aristova,K.E. Palynological research of Silurian deposits in the Moscow Basin. |
1976 |
| details |
Nd |
|
Nd |
Eisenack,A. Microfossils of the Vaginatum Limestone of Halludden, Oland. |
1976 |
| details |
Wenlockian |
|
USSR(Siberia) |
Sheshegova,L.I. Comparison of a Silurian acritarch complex and lithogenesis. (In: The Fauna and Biostratigraphy of Upper Ordovician and Silurian of the Altai-Sajan Region) |
1978 |
| details |
Early Llanvirnian |
|
England(Cumberland) |
Arthurton,R.S. et al. Ordovician and Silurian. (In: Geology of the Country around Penrith.) |
1981 |
| details |
Early Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |