Bentzisporites |
Bentzisporites bentzii
|
Germany |
Late Carboniferous |
|
Bentzisporites |
Bentzisporites margaritatus
|
Nd |
Nd |
|
Bentzisporites |
Bentzisporites tricollinus
|
Nd |
Nd |
|
Bernaultia |
Bernaultia formosa
|
Nd |
Nd |
|
Bernaultia |
Bernaultia sclerotica
|
Nd |
Nd |
|
Bernettia |
Bernettia phialophora
|
Greenland |
Jurassic |
|
Bertrandia |
Bertrandia avoldensis
|
Nd |
Nd |
|
Betula |
Betula
|
Nd |
Nd |
|
Betula |
Betula leopoldae
|
Canada |
Eocene |
|
Betula |
Betula salzhausensis
|
Germany |
Miocene |
|
Betulites |
Betulites salzhausensis
|
Germany |
Miocene |
|
Bharadwajapollenites |
Bharadwajapollenites
|
Nd |
Nd |
|
Bharadwajapollenites |
Bharadwajapollenites wielandii
|
Argentina |
Middle Triassic |
|
Biharisporites |
Biharisporites
|
Nd |
Nd |
|
Biharisporites |
Biharisporites parviornatus
|
Nd |
Nd |
|
Biharisporites |
Biharisporites spinosus
|
India |
Early Permian |
|
Biscalitheca |
Biscalitheca kansana
|
USA |
Carboniferous |
|