Baltisphaeridium |
Baltisphaeridium varium
|
Scotland |
Early Cambrian |
|
Baltisphaeridium |
Baltisphaeridium varium
|
Greenland |
Early Cambrian |
|
Baltisphaeridium |
Baltisphaeridium varium
|
Norway |
Early Cambrian |
|
Basopollis |
Basopollis atumescens
|
USA(Gulf Coast) |
Danian |
Cuisian |
Beaupreaidites |
Beaupreaidites elegansiformis
|
Antarctica |
Middle Miocene |
|
Betpakdalina |
Betpakdalina
|
Nd |
Late Senonian |
Paleocene |
Betula |
Betula
|
USSR |
Oligocene |
|
Betula |
Betula
|
Washington |
Miocene |
|
Betula |
Betula
|
USSR(Tula) |
Early Pliocene |
|
Betulaceae |
Betulaceae
|
Nd |
Late Senonian |
Paleocene |
Betulaceae |
Betulaceae
|
Tunisia |
Middle Miocene |
|
Betulaceae |
Betulaceae
|
India(Assam) |
Miocene |
|
Betulaceae |
Betulaceae
|
Afghanistan |
Late Pliocene |
Early Pleistocene |
Betulaepollenites |
Betulaepollenites claripites
|
China(Liaoning) |
Paleocene |
|
Betulaepollenites |
Betulaepollenites plicoides
|
China(Liaoning) |
Paleocene |
|
Bharadwajapollenites |
Bharadwajapollenites
|
Argentina |
Middle Triassic |
|
Biharisporites |
Biharisporites sp
|
Canada |
Frasnian |
|