Hystrichosphaeridium |
Hystrichosphaeridium mutabile
|
USSR(Russian Platform) |
Early Devonian |
|
Leiofusa |
Leiofusa bernesgae
|
USSR(Russian Platform) |
Early Devonian |
|
Leiofusa |
Leiofusa filifera
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Leiofusa |
Leiofusa fusiformis
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Leiofusa |
Leiofusa oblonga
|
USSR(Russian Platform) |
Early Devonian |
|
Leiofusa |
Leiofusa ovalis
|
USSR(Russian Platform) |
Early Devonian |
|
Leiofusa |
Leiofusa striatifera
|
USSR(Russian Platform) |
Middle Llandoverian |
Late Llandoverian |
Leiosphaeridia |
Leiosphaeridia deflandrei
|
USSR(Russian Platform) |
Ludlovian |
|
Leiosphaeridia |
Leiosphaeridia eisenackii
|
USSR(Russian Platform) |
Wenlockian |
Ludlovian |
Leiosphaeridia |
Leiosphaeridia laevigata
|
USSR(Russian Platform) |
Ludlovian |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Russian Platform) |
Early Devonian |
|
Lophosphaeridium |
Lophosphaeridium parvulum
|
USSR(Russian Platform) |
|
|
Lophosphaeridium |
Lophosphaeridium parvum
|
USSR(Russian Platform) |
Early Devonian |
|
Lophosphaeridium |
Lophosphaeridium rarum
|
USSR(Russian Platform) |
Ludlovian |
|
Micrhystridium |
Micrhystridium flandrianum
|
USSR(Russian Platform) |
Ludlovian |
|
Micrhystridium |
Micrhystridium kufferathii
|
USSR(Russian Platform) |
Ludlovian |
|
Micrhystridium |
Micrhystridium kufferathii
|
USSR(Russian Platform) |
Ludlovian |
|