Leiosphaeridium |
Leiosphaeridium reticulata
|
USSR(Russian Platform) |
Silurian |
|
Pseudozonosphaeridium |
Pseudozonosphaeridium amiliforme
|
USSR(Russian Platform) |
Silurian |
|
Zonosphaeridium |
Zonosphaeridium obvolutum
|
USSR(Russian Platform) |
Silurian |
|
Zonosphaeridium |
Zonosphaeridium glabrum
|
USSR(Russian Platform) |
Silurian |
|
Leiotriletes |
Leiotriletes nigritellus
|
USSR(Russian Platform) |
Early Devonian |
|
Leiotriletes |
Leiotriletes trivialis
|
USSR(Russian Platform) |
Early Devonian |
|
Acanthotriletes |
Acanthotriletes incertus
|
USSR(Russian Platform) |
Early Devonian |
|
Acanthotriletes |
Acanthotriletes perpusillus
|
USSR(Russian Platform) |
Early Devonian |
|
Lophotriletes |
Lophotriletes minor
|
USSR(Russian Platform) |
Middle Devonian |
|
Lophotriletes |
Lophotriletes serratus
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes vulgatus
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes subnotatus
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes vivax
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes extensus
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes singularis
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes pustulatus
|
USSR(Russian Platform) |
Middle Devonian |
|
Archaeozonotriletes |
Archaeozonotriletes meonacanthus
|
USSR(Russian Platform) |
Middle Devonian |
|