Pithonella |
Pithonella squalida
|
Nd |
Late Cenomanian |
|
Pithonella |
Pithonella squamosa
|
Nd |
Albian |
|
Pithonella |
Pithonella tanyphloia
|
Nd |
Early Barremian |
|
Pithonella |
Pithonella thayeri
|
Nd |
Oxfordian |
Tithonian |
Pithonella |
Pithonella transitoria
|
Nd |
Campanian |
|
Pithonella |
Pithonella usheri
|
Nd |
Maastrichtian |
|
Polysphaeridium |
Polysphaeridium parvum
|
Nd |
Miocene |
|
Polysphaeridium |
Polysphaeridium taiwanianum
|
Taiwan |
Miocene |
|
Praecalcigonellum |
Praecalcigonellum mutterlosei
|
Nd |
Early Barremian |
|
Praecalcigonellum |
Praecalcigonellum polymorphum
|
Nd |
Late Aptian |
Early Albian |
Praecalcigonellum |
Praecalcigonellum polymorphum
|
Nd |
Late Gargasian |
|
Praecalcigonellum |
Praecalcigonellum polymorphum
|
Nd |
Late Aptian |
Early Albian |
Praecalcigonellum |
Praecalcigonellum polymorphum
|
Nd |
Late Clansayesian |
|
Protoellipsodinium |
Protoellipsodinium longispinosum
|
Nd |
Late Hauterivian |
Early Barremian |
Protoellipsodinium |
Protoellipsodinium rarispinum
|
Nd |
Hauterivian |
Early Barremian |
Pseudoceratium |
Pseudoceratium aulaeum
|
Nd |
Late Barremian |
|
Pterocystidiopsis |
Pterocystidiopsis treptensis
|
Nd |
Late Oxfordian |
|