Calamospora |
Calamospora liquida
|
USSR(Siberia) |
Carboniferous |
|
Calamospora |
Calamospora microrugosa
|
USSR(Siberia) |
Devonian |
Permian |
Calamospora |
Calamospora microrugosa
|
USSR(Siberia) |
Carboniferous |
|
Calamospora |
Calamospora microrugosa
|
USSR(Siberia) |
Carboniferous |
|
Calamospora |
Calamospora microrugosa
|
USSR(Siberia) |
Carboniferous |
Permian |
Calamospora |
Calamospora mutabilis
|
USSR(Siberia) |
Carboniferous |
|
Calamospora |
Calamospora plicata
|
USSR(Siberia) |
Carboniferous |
Permian |
Calamotriletes |
Calamotriletes minutissima
|
USSR(Siberia) |
Devonian |
Permian |
Calamotriletes |
Calamotriletes platyrugosus
|
USSR(Siberia) |
Carboniferous |
|
Calamotriletes |
Calamotriletes plicatus
|
USSR(Siberia) |
Carboniferous |
|
Converrucosisporites |
Converrucosisporites mosaicoides
|
USSR(Siberia) |
Carboniferous |
|
Converrucosisporites |
Converrucosisporites parviverrucosus
|
USSR(Siberia) |
Middle Carboniferous |
Late Carboniferous |
Converrucosisporites |
Converrucosisporites parviverrucosus
|
USSR(Kazakh SSR) |
Permian |
|
Converrucosisporites |
Converrucosisporites triquetrus
|
USSR(Siberia) |
Carboniferous |
|
Converrucosisporites |
Converrucosisporites viluicus
|
USSR(Siberia) |
Early Carboniferous |
|
Converrucosisporites |
Converrucosisporites viluicus
|
USSR(Siberia) |
Jurassic |
|
Cycadofilicitriletes |
Cycadofilicitriletes testiculatus
|
USSR(Siberia) |
Carboniferous |
|