Aducta |
Aducta sibirica
|
USSR(Karabakh) |
Vendian |
Early Cambrian |
Aimia |
Aimia delicata
|
USSR(Siberia) |
Late Riphean |
|
Aimia |
Aimia delicata
|
USSR(Khabarovsk Kray) |
Late Riphean |
|
Aimophyton |
Aimophyton varium
|
USSR(Khabarovsk Kray) |
Late Riphean |
|
Ambiguaspora |
Ambiguaspora parvula
|
USSR(Leningrad) |
|
|
Ambiguaspora |
Ambiguaspora parvula
|
USSR(Latvian SSR) |
|
|
Amoeboidium |
Amoeboidium assimmetricum
|
USSR(Khabarovsk Kray) |
Late Riphean |
|
Angaronema |
Angaronema septata
|
USSR(Siberia) |
Late Riphean |
|
Annularia |
Annularia annulata
|
USSR(Khabarovsk Kray) |
Late Riphean |
|
Annulusia |
Annulusia
|
Nd |
Nd |
|
Annulusia |
Annulusia annulata
sp. nov. |
USSR(Khabarovsk Kray) |
Late Riphean |
|
Archaeoclada |
Archaeoclada
|
USSR(Khabarovsk Kray) |
Late Riphean |
|
Archaeopsophosphaera |
Archaeopsophosphaera asperata
|
Nd |
Nd |
|
Archaeopsophosphaera |
Archaeopsophosphaera tenner
|
Nd |
Nd |
|
Archaeotrichion |
Archaeotrichion contortum
|
Nd |
Nd |
|
Archaeotrichion |
Archaeotrichion lacerum
sp. nov. |
USSR(Khabarovsk Kray) |
Late Riphean |
|
Arctacellularia |
Arctacellularia doliiformis
|
USSR(Siberia) |
Late Riphean |
|