Protoleiosphaeridium |
Protoleiosphaeridium sigillarum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Protoleiosphaeridium |
Protoleiosphaeridium sorediforme
|
USSR(Russian Platform) |
Early Paleozoic |
|
Protoleiosphaeridium |
Protoleiosphaeridium stipticum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Protoleiosphaeridium |
Protoleiosphaeridium subcrassatum
|
USSR(Russian Platform) |
Late Proterozoic |
|
Protoleiosphaeridium |
Protoleiosphaeridium tenerum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Protoleiosphaeridium |
Protoleiosphaeridium undosum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Protosphaeridium |
Protosphaeridium fulvastrum
|
USSR(Russian Platform) |
Late Proterozoic |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium amiliforme
|
USSR(Russian Platform) |
Early Paleozoic |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium amiliforme
|
USSR(Russian Platform) |
Silurian |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium glomerabilum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium infrequentum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium populosum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium praeliganeum
|
USSR(Russian Platform) |
Early Paleozoic |
|
Retusotriletes |
Retusotriletes antiquus
|
USSR(Russian Platform) |
Middle Devonian |
|
Retusotriletes |
Retusotriletes communis
|
USSR(Russian Platform) |
Late Devonian |
|
Retusotriletes |
Retusotriletes domanicus
|
USSR(Russian Platform) |
Late Devonian |
|
Retusotriletes |
Retusotriletes parvimammatus
|
USSR(Russian Platform) |
Middle Devonian |
|