Baltisphaeridium |
Baltisphaeridium pilar
|
USSR(Russian Platform) |
|
|
Baltisphaeridium |
Baltisphaeridium ramusculosum
|
USSR(Russian Platform) |
|
|
Baltisphaeridium |
Baltisphaeridium snigirevskae
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Baltisphaeridium |
Baltisphaeridium sp
|
USSR(Russian Platform) |
Ludlovian |
|
Baltisphaeridium |
Baltisphaeridium sp
|
USSR(Russian Platform) |
Ludlovian |
|
Baltisphaeridium |
Baltisphaeridium tenuiramusculosum
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Bion |
Bion sp
|
USSR(Russian Platform) |
Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera pavimenta
|
USSR(Russian Platform) |
Ludlovian |
|
Cymatiosphaera |
Cymatiosphaera sp
|
USSR(Russian Platform) |
Ludlovian |
Early Devonian |
Cymatiosphaera |
Cymatiosphaera sp
|
USSR(Russian Platform) |
Ludlovian |
Early Devonian |
Deunffia |
Deunffia brevispinosa
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Deunffia |
Deunffia furcata
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Deunffia |
Deunffia monospinosa
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Deunffia |
Deunffia monospinosa
|
USSR(Russian Platform) |
Ludlovian |
|
Domasia |
Domasia trispinosa
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Helios |
Helios aranaides
|
USSR(Russian Platform) |
Ludlovian |
|
Hystrichosphaeridium |
Hystrichosphaeridium mutabile
|
USSR(Russian Platform) |
Early Devonian |
|