Leiosphaeridia |
Leiosphaeridia baltica
|
USSR(Estonian SSR) |
Ordovician |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Estonian SSR) |
Ordovician |
|
Tasmanites |
Tasmanites huronensis
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium longispinosum
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium hirsutoides
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium multipilosum
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium brevispinosum
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium trifurcatum
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium sp
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium hymenoferum
|
USSR(Estonian SSR) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium cristatum
|
USSR(Estonian SSR) |
Ordovician |
|
Leiofusa |
Leiofusa lunula
|
USSR(Estonian SSR) |
Early Ordovician |
|
Lunulidia |
Lunulidia lunula
|
USSR(Estonian SSR) |
Silurian |
|
Leiofusa |
Leiofusa lunula
|
USSR(Estonian SSR) |
Silurian |
|
Leiosphaeridia |
Leiosphaeridia tenuissima
sp. nov. |
USSR(Leningrad) |
Ordovician |
|