Hystrichosphaeridium |
Hystrichosphaeridium hirsutoides
|
USSR(Estonian SSR) |
Late Cambrian |
|
Hystrichosphaeridium |
Hystrichosphaeridium trifurcatum
|
USSR(Estonian SSR) |
Late Cambrian |
|
Gloeocapsamorpha |
Gloeocapsamorpha prisca
|
USSR(Estonian SSR) |
Late Cambrian |
|
Bion |
Bion cruciferum
sp. nov. |
USSR(Estonian SSR) |
Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium brevispinosum
|
USSR(Estonian SSR) |
Late Cambrian |
|
Hystrichosphaeridium |
Hystrichosphaeridium sp. Eise.,1951
sp. nov. |
USSR(Estonian SSR) |
Late Cambrian |
|
Leiosphaera |
Leiosphaera sp
|
USSR(Estonian SSR) |
Late Cambrian |
|
Hystrichosphaeridium |
Hystrichosphaeridium longispinosum
|
USSR(Estonian SSR) |
Silurian |
|