Peteinosphaeridium |
Peteinosphaeridium heteromorphicum
|
USSR(Estonian SSR) |
Llanvirnian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium micranthum
|
Finland |
Late Arenigian |
Early Caradocian |
Peteinosphaeridium |
Peteinosphaeridium micranthum
|
USSR(Estonian SSR) |
Late Arenigian |
Early Caradocian |
Peteinosphaeridium |
Peteinosphaeridium nanofurcatum
|
Finland |
Llandeilian |
|
Peteinosphaeridium |
Peteinosphaeridium nanofurcatum
|
USSR(Estonian SSR) |
Late Llandeilian |
|
Peteinosphaeridium |
Peteinosphaeridium nudum
|
Finland |
Late Llanvirnian |
Pridolian |
Peteinosphaeridium |
Peteinosphaeridium nudum
|
USSR(Estonian SSR) |
Late Llanvirnian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium parvispinosum
sp. nov. |
Finland |
Middle Ordovician |
|
Peteinosphaeridium |
Peteinosphaeridium paucifurcatum
|
Finland |
Arenigian |
Caradocian |
Peteinosphaeridium |
Peteinosphaeridium paucifurcatum
|
USSR(Estonian SSR) |
Early Caradocian |
|
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Finland |
Late Llanvirnian |
Llandoverian |
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Finland |
Late Llanvirnian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
USSR(Estonian SSR) |
Early Llandeilian |
|
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
USSR(Estonian SSR) |
Late Llanvirnian |
Early Ashgillian |
Pheoclosterium |
Pheoclosterium sp.1 Uute.,1989
sp. nov. |
Finland |
|
|
Pheoclosterium |
Pheoclosterium sp.2 Uute.,1989
sp. nov. |
Finland |
Late Arenigian |
Early Llanvirnian |
Pheoclosterium |
Pheoclosterium sp.2 Uute.,1989
sp. nov. |
USSR(Estonian SSR) |
Late Arenigian |
Early Llanvirnian |