Micrhystridium |
Micrhystridium
|
USSR(Urals) |
Devonian |
|
Pterospermopsis |
Pterospermopsis
|
USSR(Urals) |
Devonian |
|
Deunffia |
Deunffia
|
USSR(Urals) |
Devonian |
|
Leiofusa |
Leiofusa
|
USSR(Urals) |
Devonian |
|
Duvernaysphaera |
Duvernaysphaera
|
USSR(Urals) |
Devonian |
|
Trachysphaeridium |
Trachysphaeridium
|
USSR(Urals) |
Devonian |
|
Bacisphaeridium |
Bacisphaeridium
|
USSR(Urals) |
Devonian |
|
Saccammia |
Saccammia
|
USSR(Urals) |
Devonian |
|
Cymatiosphaera |
Cymatiosphaera
|
USSR(Urals) |
Devonian |
|
Schismatosphaeridium |
Schismatosphaeridium perforatum
|
USSR(Urals) |
Devonian |
|
Polycellaria |
Polycellaria
|
USSR(Urals) |
Devonian |
|
Synsphaeridium |
Synsphaeridium
|
USSR(Urals) |
Devonian |
|
Symplassosphaeridium |
Symplassosphaeridium
|
USSR(Urals) |
Devonian |
|
Rifeniata |
Rifeniata
|
USSR(Urals) |
Devonian |
|
Castanea |
Castanea crenataeformis
|
USSR(Yakut ASSR) |
Middle Eocene |
Late Eocene |
Castanopsis |
Castanopsis pseudocingulum
|
USSR(Yakut ASSR) |
Middle Eocene |
Late Eocene |
Reevesiapollis |
Reevesiapollis lubomirovae
|
USSR(Yakut ASSR) |
Middle Eocene |
Late Eocene |