Quantouendinium |
Quantouendinium dictyophorum
|
China(Heilungkiang) |
Aptian |
Albian |
Quantouendinium |
Quantouendinium microreticulatum
|
China(Heilungkiang) |
Middle Albian |
|
Quantouendinium |
Quantouendinium microreticulatum
|
China(Heilungkiang) |
Aptian |
Albian |
Quantouendinium |
Quantouendinium spinosum
|
China(Heilungkiang) |
Campanian |
|
Quantouendinium |
Quantouendinium spinosum
|
China(Heilungkiang) |
Campanian |
|
Scenedesmus |
Scenedesmus sp
|
China(Heilungkiang) |
Early Cretaceous |
|
Sentusidinium |
Sentusidinium bifidum
|
China(Heilungkiang) |
Late Cretaceous |
|
Spicadinium |
Spicadinium akidoton
|
China(Heilungkiang) |
Late Cretaceous |
|
Spicadinium |
Spicadinium sp
|
China(Heilungkiang) |
Early Cretaceous |
|
Tetrachacysta |
Tetrachacysta granulata
|
China(Heilungkiang) |
Cenomanian |
Turonian |
Tetrachacysta |
Tetrachacysta granulata
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Tetrachacysta |
Tetrachacysta spinulosa
|
China(Heilungkiang) |
Cenomanian |
Turonian |
Tetrachacysta |
Tetrachacysta spinulosa
|
China(Heilungkiang) |
Cenomanian |
|
Tetrachacysta |
Tetrachacysta tuberculata
|
China(Heilungkiang) |
Cenomanian |
Turonian |
Tetrachacysta |
Tetrachacysta tuberculata
|
China(Heilungkiang) |
Cenomanian |
|
Vesperopsis |
Vesperopsis
|
Kansas |
Late Albian |
|
Vesperopsis |
Vesperopsis glabra
|
China(Heilungkiang) |
Valanginian |
Hauterivian |