Baltisphaeridium |
Baltisphaeridium cerinum
|
USSR(Latvian SSR) |
Early Cambrian |
|
Baltisphaeridium |
Baltisphaeridium dubium
|
USSR(Latvian SSR) |
Early Cambrian |
|
Baltisphaeridium |
Baltisphaeridium orbiculare
|
USSR(Latvian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium tornatum
|
USSR(Latvian SSR) |
Early Cambrian |
Middle Cambrian |
Micrhystridium |
Micrhystridium pallidum
|
USSR(Latvian SSR) |
Early Cambrian |
|
Archaeodiscina |
Archaeodiscina umbonulata
|
USSR(Latvian SSR) |
Early Cambrian |
Middle Cambrian |
Tasmanites |
Tasmanites sp
|
USSR(Latvian SSR) |
Early Cambrian |
|
Leiosphaeridia |
Leiosphaeridia type B
sp. nov. |
USSR(Latvian SSR) |
Early Cambrian |
Middle Cambrian |
Leiomarginata |
Leiomarginata simplex
|
USSR(Latvian SSR) |
Early Cambrian |
|
Granomarginata |
Granomarginata squamacea
|
USSR(Latvian SSR) |
Early Cambrian |
|
Baltisphaeridium |
Baltisphaeridium ciliosum
|
USSR(Latvian SSR) |
Early Cambrian |
Middle Cambrian |
Baltisphaeridium |
Baltisphaeridium compressum
|
USSR(Latvian SSR) |
Early Cambrian |
|
Baltisphaeridium |
Baltisphaeridium varium
|
USSR(Latvian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium spinosum
|
USSR(Latvian SSR) |
Early Cambrian |
Middle Cambrian |
Micrhystridium |
Micrhystridium parvum
|
USSR(Latvian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium dissimilare
|
USSR(Latvian SSR) |
Early Cambrian |
Middle Cambrian |
Estiastra |
Estiastra minima
|
USSR(Latvian SSR) |
Early Cambrian |
|