Palaeoanacystis |
Palaeoanacystis vulgaris
|
India(Karnataka) |
Middle Algonkian |
|
Palaeoanacystis |
Palaeoanacystis vulgaris
|
India(S.India) |
Early Riphean |
|
Palaeoscytonema |
Palaeoscytonema moorhousi
|
Canada(Ontario) |
Middle Algonkian |
|
Palaeospiralina |
Palaeospiralina arcuata
|
Canada(Ontario) |
Middle Algonkian |
|
Palaeospiralina |
Palaeospiralina minuta
|
Canada(Ontario) |
Middle Algonkian |
|
Palaeospiralis |
Palaeospiralis canadensis
|
Canada(Ontario) |
Middle Algonkian |
|
Phanerosphaerops |
Phanerosphaerops sp
|
India(Karnataka) |
Middle Algonkian |
|
Primorivularea |
Primorivularea thunderbayensis
|
Canada(Ontario) |
Middle Algonkian |
|
Protosphaeridium |
Protosphaeridium
|
India(Bihar) |
Middle Proterozoic |
Late Proterozoic |
Protosphaeridium |
Protosphaeridium densum
|
India(S.India) |
Early Riphean |
|
Protosphaeridium |
Protosphaeridium patelliforme
|
India(S.India) |
Early Riphean |
|
Protosphaeridium |
Protosphaeridium tuberculiferum
|
India(S.India) |
Early Riphean |
|
Pterospermopsis |
Pterospermopsis microgranulosum
|
India(Orissa) |
Middle Algonkian |
|
Scaphita |
Scaphita eniseica
|
India(S.India) |
Early Riphean |
|
Schismatosphaeridium |
Schismatosphaeridium perforatum
|
India(S.India) |
Early Riphean |
|
Schizothrix |
Schizothrix atavia
|
Canada(Ontario) |
Middle Algonkian |
|
Siphonophycus |
Siphonophycus
|
India(Bihar) |
Middle Proterozoic |
Late Proterozoic |