Zonoptycha |
Zonoptycha glabra
|
USSR |
Jurassic |
Early Cretaceous |
Monoptycha |
Monoptycha rotunda
|
USSR |
Jurassic |
Early Cretaceous |
Acanthotriletes |
Acanthotriletes spectabilis
|
USSR |
Jurassic |
Early Cretaceous |
Azonomonoletes |
Azonomonoletes leguminiformis
|
USSR |
Late Cretaceous |
Tertiary |
Psophosphaera |
Psophosphaera laricina
|
USSR |
Late Cretaceous |
Tertiary |
Diptycha |
Diptycha simplex
|
USSR |
Late Cretaceous |
Tertiary |
Ptychomonoporina |
Ptychomonoporina fusa
|
USSR |
Late Cretaceous |
Tertiary |
Triporina |
Triporina vistibula
|
USSR |
Late Cretaceous |
Tertiary |
Triporina |
Triporina coripheae
|
USSR |
Late Cretaceous |
Tertiary |
Triporina |
Triporina tiliae
|
USSR |
Late Cretaceous |
Tertiary |
Ptychotetraporina |
Ptychotetraporina rotundaquadrangularis
|
USSR |
Late Cretaceous |
Tertiary |
Pentaporina |
Pentaporina rotunda
|
USSR |
Late Cretaceous |
Tertiary |
Ptychopentaporina |
Ptychopentaporina alniformis
|
USSR |
Late Cretaceous |
Tertiary |
Azonotriletes |
Azonotriletes microrugosus
|
USSR |
Middle Carboniferous |
Late Carboniferous |
Azonomonoletes |
Azonomonoletes vulgaris
|
USSR |
Middle Carboniferous |
Late Carboniferous |
Zonotriletes |
Zonotriletes pusillus
|
USSR |
Middle Carboniferous |
Late Carboniferous |
Azonaletes |
Azonaletes facetus
|
USSR |
Middle Carboniferous |
Late Carboniferous |