Palaeostomocystis |
Palaeostomocystis senilis
|
Canada(NWT,Mackenzie) |
Early Valanginian |
Middle Valanginian |
Palaeostomocystis |
Palaeostomocystis tornatilis
|
England(Buckinghamshire) |
Late Callovian |
Oxfordian |
Palaeostomocystis |
Palaeostomocystis triquetra
|
Canada(NWT,Mackenzie) |
Barremian |
|
Palaeotetradinium |
Palaeotetradinium paucispinum
|
Nd |
Nd |
|
Pareodinia |
Pareodinia spinosa
|
E.Germany |
Late Barremian |
|
Pareodinia |
Pareodinia tripartita
|
Nd |
Nd |
|
Pentagonum |
Pentagonum granulatum
|
USSR(Tadzhik SSR) |
Late Eocene |
|
Pentagonum |
Pentagonum huanghuaense
|
China(Hopei) |
Late Eocene |
Late Oligocene |
Peridinium |
Peridinium conicum
|
USSR(Khanty-Mansiysk) |
Paleocene |
|
Phelodinium |
Phelodinium gaditanum
|
Spain |
Nd |
|
Phthanoperidinium |
Phthanoperidinium pannonium
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium belgicum
|
Belgium |
Eocene |
|
Polysphaeridium |
Polysphaeridium cephalum
|
India(Kutch) |
Oligocene |
|
Polysphaeridium |
Polysphaeridium daveyi
|
Gabon |
Late Cenomanian |
Turonian |
Polysphaeridium |
Polysphaeridium elongatum
|
Senegal |
Maastrichtian |
|
Polysphaeridium |
Polysphaeridium granulosum
|
Senegal |
Campanian |
Maastrichtian |
Polysphaeridium |
Polysphaeridium laminaspinosum
|
England(Surrey) |
Cenomanian |
|