Leiosphaeridia |
Leiosphaeridia hyalina
|
USSR(Siberia) |
Silurian |
|
Macroptycha |
Macroptycha uniplicata
|
USSR(Siberia) |
Silurian |
|
Leiofusa |
Leiofusa fusiformis
|
USSR(Siberia) |
Silurian |
|
Baltisphaeridium |
Baltisphaeridium sanpetrense
|
USSR(Siberia) |
Silurian |
|
Cymatiosphaera |
Cymatiosphaera conifera
|
USSR(Siberia) |
Silurian |
|
Cymatiosphaera |
Cymatiosphaera multisepta
|
USSR(Siberia) |
Silurian |
|
Deunffia |
Deunffia monospinosa
|
USSR(Siberia) |
Silurian |
|
Leiofusa |
Leiofusa blanca
|
USSR(Siberia) |
Silurian |
|
Baltisphaeridium |
Baltisphaeridium microspinosum
|
USSR(Siberia) |
Silurian |
|
Leiofusa |
Leiofusa fastidiona
|
USSR(Siberia) |
Silurian |
|
Sphaerochitina |
Sphaerochitina sp
|
USSR(Siberia) |
Silurian |
|
Leiofusa |
Leiofusa granulacutis
|
USSR(Siberia) |
Silurian |
|
Leiofusa |
Leiofusa ovalis
|
USSR(Siberia) |
Silurian |
|
Leiosphaeridia |
Leiosphaeridia flava
|
USSR(Siberia) |
Silurian |
|
Leiosphaeridia |
Leiosphaeridia voigtii
|
USSR(Siberia) |
Silurian |
|
Lophosphaeridium |
Lophosphaeridium papulosum
|
USSR(Siberia) |
Silurian |
|
Pulvinosphaeridium |
Pulvinosphaeridium pulvinellum
|
USSR(Siberia) |
Silurian |
|