Rifeniata |
Rifeniata vulgaris
|
USSR(Vologda) |
Middle Ordovician |
|
Scaphita |
Scaphita
|
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Scaphita |
Scaphita eniseica
sp. nov. |
USSR(Krasnoyarsk Kray) |
Late Riphean |
|
Scaphospinosa |
Scaphospinosa
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Scaphospinosa |
Scaphospinosa ischorica
sp. nov. |
USSR(Leningrad) |
Middle Cambrian |
|
Sphaerochitina |
Sphaerochitina llorona
|
USSR(Vologda) |
Middle Ordovician |
|
Stenozonomezotriletes |
Stenozonomezotriletes
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Stenozonomezotriletes |
Stenozonomezotriletes laxus
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Stictosphaeridium |
Stictosphaeridium implexum
|
USSR(Karelian ASSR) |
Middle Precambrian |
|
Stictosphaeridium |
Stictosphaeridium implexum
|
USSR(Ukrainian SSR) |
Middle Precambrian |
|
Stictosphaeridium |
Stictosphaeridium implexum
|
USSR(Ukrainian SSR) |
Precambriam |
|
Stictosphaeridium |
Stictosphaeridium implexum
|
USSR(Siberia) |
Middle Precambrian |
|
Stictosphaeridium |
Stictosphaeridium implexum
|
USSR(Siberia) |
Riphean |
|
Stictosphaeridium |
Stictosphaeridium pectinale
|
USSR(Ukrainian SSR) |
Precambriam |
|
Stictosphaeridium |
Stictosphaeridium pectinale
|
USSR(Siberia) |
Middle Precambrian |
|
Stictosphaeridium |
Stictosphaeridium pectinale
|
USSR(Siberia) |
Riphean |
|
Stictosphaeridium |
Stictosphaeridium sibiricum
|
USSR(Siberia) |
Riphean |
|