Turuchanica |
Turuchanica ternata
|
USSR(Karelian ASSR) |
Middle Precambrian |
|
Turuchanica |
Turuchanica ternata
|
USSR(Ukrainian SSR) |
Precambriam |
|
Turuchanica |
Turuchanica ternata
|
USSR(Siberia) |
Riphean |
|
Veryhachium |
Veryhachium europaeum
sp. nov. |
USSR(Leningrad) |
Middle Cambrian |
|
Veryhachium |
Veryhachium nasicum
|
USSR(Vologda) |
Middle Ordovician |
|
Veryhachium |
Veryhachium reductum
|
USSR(Vologda) |
Middle Ordovician |
|
Veryhachium |
Veryhachium sp
|
USSR(Leningrad) |
Middle Cambrian |
|
Veryhachium |
Veryhachium sp
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Veryhachium |
Veryhachium trisphaeridium
|
USSR(Vologda) |
Middle Ordovician |
|
Zonooidium |
Zonooidium guttiforme
|
USSR(Leningrad) |
Middle Cambrian |
|
Zonosphaeridium |
Zonosphaeridium
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Zonosphaeridium |
Zonosphaeridium absolutum
|
USSR(Vologda) |
Middle Ordovician |
|
Zonosphaeridium |
Zonosphaeridium crassum
|
USSR(Siberia) |
Riphean |
|
Zonosphaeridium |
Zonosphaeridium limpatum
|
USSR(Vologda) |
Middle Ordovician |
|
Zonosphaeridium |
Zonosphaeridium sp
|
USSR(Ukrainian SSR) |
Precambriam |
|
Zonosphaeridium |
Zonosphaeridium sp
|
USSR(Siberia) |
Riphean |
|