Trematosphaeridium |
Trematosphaeridium formosum
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium bifurcatum
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium simplex
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium minor
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium asper
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium crepidale
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium triviale
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium tener
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Trematosphaeridium |
Trematosphaeridium biloculare
sp. nov. |
USSR(Urals) |
Middle Riphean |
|
Leiopsophosphaera |
Leiopsophosphaera corrugata
sp. nov. |
USSR(Urals) |
Early Vendian |
|
Leiopsophosphaera |
Leiopsophosphaera particularis
sp. nov. |
USSR(Urals) |
Late Riphean |
|
Leiopsophosphaera |
Leiopsophosphaera tenuis
sp. nov. |
USSR(Urals) |
Late Riphean |
|
Leiopsophosphaera |
Leiopsophosphaera crassa
sp. nov. |
USSR(Urals) |
Late Riphean |
|
Brochopsophosphaera |
Brochopsophosphaera medialis
sp. nov. |
USSR(Urals) |
Early Vendian |
|
Brochopsophosphaera |
Brochopsophosphaera vulgaris
sp. nov. |
USSR(Urals) |
Early Vendian |
|
Archaeosacculina |
Archaeosacculina singularis
sp. nov. |
USSR(Urals) |
Early Vendian |
|
Archaeosacculina |
Archaeosacculina favosa
sp. nov. |
USSR(Urals) |
Late Riphean |
|