Phthanoperidinium |
Phthanoperidinium
|
Nd |
Nd |
|
Phthanoperidinium |
Phthanoperidinium amoenum
|
Nd |
Nd |
|
Phthanoperidinium |
Phthanoperidinium comatum
|
Nd |
Nd |
|
Phthanoperidinium |
Phthanoperidinium coreoides
|
Nd |
Nd |
|
Polykrikos |
Polykrikos
|
Nd |
Nd |
|
Polykrikos |
Polykrikos schwartzii
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium congregatum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium zoharyi
|
Nd |
Nd |
|
Polystephanephorus |
Polystephanephorus
|
Nd |
Nd |
|
Polystephanephorus |
Polystephanephorus calathus
|
Nd |
Nd |
|
Prolixosphaeridium |
Prolixosphaeridium basifurcatum
|
Nd |
Nd |
|
Prolixosphaeridium |
Prolixosphaeridium mixtispinosum
|
France |
Portlandian |
|
Prolixosphaeridium |
Prolixosphaeridium parvispinum
|
England |
Barremian |
Early Turonian |
Prolixosphaeridium |
Prolixosphaeridium spissum
|
Nd |
Nd |
|
Protoellipsodinium |
Protoellipsodinium sp
|
England |
Hauterivian |
Albian |
Protoellipsodinium |
Protoellipsodinium spinocristatum
|
Nd |
Nd |
|