Fromea |
Fromea cylindrica
|
Australia(W.Australia) |
Oxfordian |
Early Kimmeridgian |
Fromea |
Fromea elongata
|
Nd |
Nd |
|
Fromea |
Fromea fragilis
|
Australia(W.Australia) |
Cenomanian |
|
Fromea |
Fromea granulata
|
Nd |
Nd |
|
Fromea |
Fromea granulosa
|
Australia(W.Australia) |
Cenomanian |
|
Fromea |
Fromea laevigata
|
California |
Maastrichtian |
Danian |
Fromea |
Fromea oblonga
|
USSR(Siberia) |
Permian |
|
Fromea |
Fromea reticulata
|
South Africa |
Campanian |
Danian |
Fromea |
Fromea warlinghamensis
|
Nd |
Nd |
|
Fusiformacysta |
Fusiformacysta salasii
|
Nd |
Nd |
|
Gardodinium |
Gardodinium albertii
|
Nd |
Nd |
|
Gardodinium |
Gardodinium deflandrei
|
England(Isle of Wight) |
Cenomanian |
Santonian |
Gardodinium |
Gardodinium ordinale
|
Nd |
Nd |
|
Gardodinium |
Gardodinium pyriforme
|
Nd |
Nd |
|
Gardodinium |
Gardodinium trabeculosum
|
Nd |
Nd |
|
Geiselodinium |
Geiselodinium eocenicum
|
Nd |
Nd |
|
Geiselodinium |
Geiselodinium geiseltalense
|
Nd |
Nd |
|