Baltisphaeridium |
Baltisphaeridium colligerum
|
Australia(Victoria) |
Early Eocene |
|
Baltisphaeridium |
Baltisphaeridium placacanthum
|
Australia(Victoria) |
Miocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium colligerum
|
Australia(Victoria) |
Early Eocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium placacanthum
|
Australia(Victoria) |
Miocene |
|
Baltisphaeridium |
Baltisphaeridium heteracanthum
|
Australia(W.Australia) |
Senonian |
|
Codoniella |
Codoniella campanulata
|
Australia(W.Australia) |
Cenomanian |
Middle Senonian |
Hystrichosphaeridium |
Hystrichosphaeridium heteracanthum
|
Australia(W.Australia) |
Senonian |
|
Hystrichosphaeridium |
Hystrichosphaeridium paucifurcatum
|
Australia(W.Australia) |
Eocene |
|
Codonia |
Codonia campanulata
|
Australia(W.Australia) |
Cenomanian |
Middle Senonian |
Baltisphaeridium |
Baltisphaeridium paucifurcatum
|
Australia(W.Australia) |
Eocene |
|
Membranilarnacia |
Membranilarnacia liradiscoides
|
Baltic |
Late Cretaceous |
|
Membranilarnacia |
Membranilarnacia pterospermoides
|
Baltic |
Late Cretaceous |
|
Baltisphaeridium |
Baltisphaeridium erraticum
|
Baltic |
Late Llandoverian |
|
Baltisphaeridium |
Baltisphaeridium gotlandicum
|
Baltic |
Late Llandoverian |
|
Baltisphaeridium |
Baltisphaeridium piriferum
|
Baltic |
Late Llandoverian |
|
Baltisphaeridium |
Baltisphaeridium oligofurcatum
|
Baltic |
Late Llandoverian |
|
Baltisphaeridium |
Baltisphaeridium brevifurcatum
|
Baltic |
Late Llandoverian |
|