Protosphaeridium |
Protosphaeridium rigidulum
|
Nd |
Nd |
|
Protosphaeridium |
Protosphaeridium scabridum
|
Nd |
Nd |
|
Pterospermopsimorpha |
Pterospermopsimorpha annularis
|
USSR(Siberia) |
Late Riphean |
|
Pterospermopsimorpha |
Pterospermopsimorpha deformata
|
USSR(Siberia) |
Riphean |
|
Pterospermopsimorpha |
Pterospermopsimorpha granulata
sp. nov. |
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Pterospermopsimorpha |
Pterospermopsimorpha insolita
|
USSR(Urals) |
Late Riphean |
|
Pterospermopsimorpha |
Pterospermopsimorpha insolita
|
USSR(Siberia) |
Late Riphean |
Vendian |
Pterospermopsimorpha |
Pterospermopsimorpha insolita
|
USSR(Ukrainian SSR) |
Vendian |
|
Pterospermopsimorpha |
Pterospermopsimorpha pileiformis
|
USSR(European) |
Late Riphean |
Vendian |
Pterospermopsis |
Pterospermopsis simicus
|
USSR(Kalmyr ASSR) |
Late Riphean |
|
Pulvinosphaeridium |
Pulvinosphaeridium antiquum
|
Yugoslavia |
Early Cambrian |
|
Quadratimorpha |
Quadratimorpha ordinata
|
Nd |
Nd |
|
Ramacia |
Ramacia carpentariana
|
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Rectia |
Rectia
|
USSR(Khabarovsk Kray) |
Late Riphean |
|
Rectia |
Rectia costata
sp. nov. |
USSR(Urals) |
Late Riphean |
|
Rectia |
Rectia costata
sp. nov. |
USSR(Chelyabinskaya) |
Late Riphean |
|
Rectia |
Rectia costata
sp. nov. |
USSR(Bashkir ASSR) |
Late Riphean |
|