Leiosphaeridia |
Leiosphaeridia ochroleuca
|
USSR(Baltic) |
Middle Cambrian |
|
Leiosphaeridia |
Leiosphaeridia tenuissima
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Leiosphaeridia |
Leiosphaeridia pellucida
|
USSR(Baltic) |
Middle Cambrian |
|
Leiosphaeridia |
Leiosphaeridia baltica
|
USSR(Baltic) |
Middle Cambrian |
|
Leiosphaeridia |
Leiosphaeridia sp
|
USSR(Baltic) |
Middle Cambrian |
|
Trachysphaeridium |
Trachysphaeridium attenuatum
|
USSR(Baltic) |
Cambrian |
|
Lophosphaeridium |
Lophosphaeridium tuberculiferum
|
USSR(Baltic) |
Cambrian |
Silurian |
Protosphaeridium |
Protosphaeridium densum
|
USSR(Baltic) |
Middle Cambrian |
Silurian |
Orygmatosphaeridium |
Orygmatosphaeridium flexuosum
|
USSR(Baltic) |
Middle Cambrian |
|
Trematosphaeridium |
Trematosphaeridium holtedahlii
|
USSR(Baltic) |
Middle Cambrian |
|
Granomarginata |
Granomarginata prima
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Granomarginata |
Granomarginata squamacea
|
USSR(Baltic) |
Middle Cambrian |
Silurian |
Leiomarginata |
Leiomarginata simplex
|
USSR(Baltic) |
Middle Cambrian |
Silurian |
Cymatiosphaera |
Cymatiosphaera sp
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Baltisphaeridium |
Baltisphaeridium ramusculosum
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Baltisphaeridium |
Baltisphaeridium compressum
|
USSR(Baltic) |
Middle Cambrian |
Ordovician |
Baltisphaeridium |
Baltisphaeridium orbiculare
|
USSR(Baltic) |
Middle Cambrian |
|