| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Silurian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Early Gothlandian |
|
USSR(Baltic) |
Eisenack,A. Hystrichospheres and related forms in the Baltic Silurian. |
1938 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| original |
Silurian |
|
Czechoslovakia |
Eisenack,A. Hystrichospheres and related forms in the Baltic Silurian. |
1938 |
| details |
Silurian |
|
Czechoslovakia |
Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. |
1963 |
| details |
Silurian |
|
Czechoslovakia |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |