Archaeodiscina |
Archaeodiscina parvibody
|
USSR(Russian Platform) |
Ordovician |
Early Devonian |
Archaeodiscina |
Archaeodiscina parvibody
sp. nov. |
USSR(Yaroslav) |
Middle Ordovician |
|
Archaeodiscina |
Archaeodiscina rugulosa
|
USSR(Russian Platform) |
Ordovician |
Early Devonian |
Archaeodiscina |
Archaeodiscina rugulosa
sp. nov. |
USSR(Yaroslav) |
Ordovician |
|
Archaeodiscina |
Archaeodiscina scabra
|
USSR(Yaroslav) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium crassum
|
USSR(Yaroslav) |
Middle Ordovician |
|
Baltisphaeridium |
Baltisphaeridium echinatum
sp. nov. |
USSR(Kalinin) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium minor
|
USSR(Yaroslav) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium multipilosum
|
USSR(Yaroslav) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium rugosum
|
USSR(Kalinin) |
Ordovician |
|
Baltisphaeridium |
Baltisphaeridium trifurcatum
|
USSR(Yaroslav) |
Ordovician |
|
Cymatiosphaera |
Cymatiosphaera pavimenta
|
USSR(Yaroslav) |
Ordovician |
|
Latoporata |
Latoporata punctata
|
USSR(Russian Platform) |
Ordovician |
Early Devonian |
Latoporata |
Latoporata punctata
sp. nov. |
USSR(Yaroslav) |
Ordovician |
|
Latoporata |
Latoporata punctata
sp. nov. |
USSR(Yaroslav) |
Ordovician |
|
Latoporata |
Latoporata punctata
|
USSR(Russian Platform) |
Early Devonian |
Ordovician |
Leiomarginata |
Leiomarginata simplex
|
USSR(Russian Platform) |
Cambrian |
Ordovician |