Kildinella |
Kildinella hyperboreica
|
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Leiopsophosphaera |
Leiopsophosphaera microrugosa
|
Nd |
Nd |
|
Leiopsophosphaera |
Leiopsophosphaera simplicissima
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia asperata
|
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Macroptycha |
Macroptycha
|
Nd |
Nd |
|
Polyedrosphaeridium |
Polyedrosphaeridium bullatum
|
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Scaphita |
Scaphita
|
Nd |
Nd |
|
Trachyoligotriletes |
Trachyoligotriletes
|
Nd |
Nd |
|
Trachytriletes |
Trachytriletes asperatus
|
USSR(Krasnoyarsk Kray) |
Late Riphean |
|