Betulaceae |
Betulaceae
|
USSR(WSL) |
Cenomanian |
Turonian |
Betulaceae |
Betulaceae
|
USSR(WSL) |
Campanian |
|
Betulaceae |
Betulaceae
|
USSR(WSL) |
Maastrichtian |
|
Betulaceae |
Betulaceae
|
USSR(Siberia) |
Barremian |
Aptian |
Betulaceae |
Betulaceae
|
USSR(Siberia) |
Senonian |
|
Betulaepollenites |
Betulaepollenites microexcelsus
|
USSR(Far East) |
Maastrichtian |
|
Betulaepollenites |
Betulaepollenites microexcelsus
|
USSR(WSL) |
Senonian |
|
Bialina |
Bialina lobata
|
USSR(Far East) |
Early Valanginian |
Middle Valanginian |
Blechnum |
Blechnum brachylobatum
|
USSR(Siberia) |
Aptian |
Albian |
Botrychium |
Botrychium cretaceum
|
USSR(Siberia) |
Cenomanian |
|
Botrychium |
Botrychium lunaria
|
USSR(Siberia) |
Neocomian |
|
Botrychium |
Botrychium sp
|
USSR(Siberia) |
Neocomian |
|
Botrychium |
Botrychium sp
|
USSR(Siberia) |
Late Santonian |
Campanian |
Botrychium |
Botrychium sp
|
USSR(Siberia) |
Coniacian |
Campanian |
Botrychium |
Botrychium sp
|
USSR(Siberia) |
Danian |
|
Botrychium |
Botrychium sp
|
USSR(Far East) |
Neocomian |
|
Botrychium |
Botrychium sp
|
USSR(WSL) |
Maastrichtian |
|