Ovum |
Ovum hispidum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium hirsutum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium sp
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium longispinosum
|
USSR(Estonian SSR) |
Silurian |
|
Hystrichosphaeridium |
Hystrichosphaeridium trifurcatum
|
USSR(Estonian SSR) |
Silurian |
|
Hystrichosphaeridium |
Hystrichosphaeridium baciferum
|
USSR(Estonian SSR) |
Silurian |
|
Hystrichosphaeridium |
Hystrichosphaeridium hirsutoides
sp. nov. |
USSR(Estonian SSR) |
Silurian |
|
Hystrichosphaeridium |
Hystrichosphaeridium balticum
sp. nov. |
USSR(Estonian SSR) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium diploporum
sp. nov. |
USSR(Estonian SSR) |
Ordovician |
|
Leiosphaera |
Leiosphaera huronensis
|
USSR(Estonian SSR) |
Silurian |
|
Leiosphaera |
Leiosphaera sp
|
USSR(Estonian SSR) |
Silurian |
|
Leiofusa |
Leiofusa tenuis
sp. nov. |
USSR(Estonian SSR) |
Silurian |
|
Leiofusa |
Leiofusa navicula
sp. nov. |
USSR(Estonian SSR) |
Silurian |
|
Leiofusa |
Leiofusa navis
|
USSR(Estonian SSR) |
Silurian |
|
Leiofusa |
Leiofusa lunula
sp. nov. |
USSR(Estonian SSR) |
Silurian |
|
Ctyenopyge |
Ctyenopyge flagellifera
|
USSR(Estonian SSR) |
Late Cambrian |
|
Hystrichosphaeridium |
Hystrichosphaeridium longispinosum
|
USSR(Estonian SSR) |
Late Cambrian |
|