Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium minimum
|
USSR(Estonian SSR) |
Late Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium minimum
|
USSR(Pre-Baltic) |
Late Cambrian |
|
Baltisphaeridium |
Baltisphaeridium capillatum
|
USSR(Estonian SSR) |
Late Cambrian |
Early Tremadocian |
Baltisphaeridium |
Baltisphaeridium capillatum
|
USSR(Leningrad) |
Late Cambrian |
Early Tremadocian |
Baltisphaeridium |
Baltisphaeridium capillatum
|
USSR(Yaroslav) |
Late Cambrian |
Early Tremadocian |
Baltisphaeridium |
Baltisphaeridium cristatum
|
Nd |
Nd |
|
Buchinia |
Buchinia
|
USSR(Yaroslav) |
Late Cambrian |
|
Buchinia |
Buchinia variabilis
sp. nov. |
USSR(Yaroslav) |
Late Cambrian |
|
Buedingiisphaeridium |
Buedingiisphaeridium tremadocum
|
USSR(Yaroslav) |
Late Cambrian |
Early Tremadocian |
Calyxiella |
Calyxiella izhoriensis
|
USSR(Leningrad) |
Late Cambrian |
|
Calyxiella |
Calyxiella izhoriensis
|
USSR(Yaroslav) |
Late Cambrian |
|
Calyxiella |
Calyxiella sp
|
USSR(Yaroslav) |
Late Cambrian |
|
Cristallinium |
Cristallinium baculatum
sp. nov. |
USSR(Estonian SSR) |
Late Cambrian |
|
Cristallinium |
Cristallinium cambriense
|
USSR(Leningrad) |
Late Cambrian |
Tremadocian |
Cristallinium |
Cristallinium cambriense
|
USSR(Kalinin) |
Middle Cambrian |
Late Cambrian |
Cristallinium |
Cristallinium cambriense
|
USSR(Estonian SSR) |
Late Cambrian |
|
Cristallinium |
Cristallinium cambriense
|
USSR(Yaroslav) |
Middle Cambrian |
Tremadocian |