| details |
Ordovician |
|
Baltic |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Early Ordovician |
Middle Ordovician |
Sweden |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Silurian |
|
Sweden |
Eisenack,A. Microfossils of the Gotland Silurian. Hystrichospheres and questionable types |
1965 |
| details |
Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Ordovician acritarchs from Central Bohemia. |
1965 |
| original |
Late Westphalian B |
Early Westphalian C |
England(Yorkshire) |
Spode,F. A new record of Hystrichospheres, from the Mansfield Marine Band, Westphalian. |
1964 |
| details |
Late Cretaceous |
|
Colorado |
Newman,K.R. Palynologic correlations of Late Cretaceous and Paleocene Formations, Northwestern Colorado. (In: Palynology in Oil Exploration, Aureal T. Cross, editor) |
1964 |
| details |
Nd |
|
Nd |
Combaz,A. Palynofacies. |
1964 |
| details |
Early Gedinnian |
|
Spain |
Cramer,F.H. A provisional note on the occurrence of microplankton and sporomorphs in the sedimentary rocks of the Lower Devonia in the Cantabrian Mountains |
1963 |
| details |
Siegenian |
Emsian |
Spain |
Cramer,F.H. A provisional note on the occurrence of microplankton and sporomorphs in the sedimentary rocks of the Lower Devonia in the Cantabrian Mountains |
1963 |
| details |
Zechstein |
|
W.Germany(Hesse) |
Schaarschmidt,F. Spores and Hystrichosphaerids from the Zechstein of Budingen, Wetterau. |
1963 |
| details |
Zechstein |
|
W.Germany(Hesse) |
Schaarschmidt,F. Spores and Hystrichosphaerids from the Zechstein of Budingen, Wetterau. |
1963 |
| details |
Wenlockian |
|
England(Shropshire) |
Downie,C. 'Hystrichosheres', (acritarchs), and spores of the Wenlock Shales, (Silurian), of Wenlock, England. |
1963 |
| details |
Late Cretaceous |
|
Canada(Arctic) |
Thorsteinsson,R. et al. Banks, Victoria and Stefansson Islands, Arctic Archipelago. |
1962 |
| details |
Nd |
|
Nd |
Eisenack,A. Some recent observations on Hystrichosphaeridium |
1962 |
| details |
Oxfordian |
|
England(Yorkshire) |
Sarjeant,W.A.S. Microplankton from the Kellaways rock and Oxford Clay of Yorkshire |
1961 |
| details |
Valentian |
|
Algeria |
Deunff,J. et al. Palynoplanktonic correlation in the Cambro-Ordovician of the Sahara |
1961 |
| details |
Late Devonian |
|
Canada(Yukon) |
McGregor,D.C. Spores and other plant microfossils from selected Devonian sedimentary Formations of Canada |
1957 |