Oligosphaeridium |
Oligosphaeridium longicercale
|
Nd |
Cenomanian |
|
Oligosphaeridium |
Oligosphaeridium pseudoabaculum
|
Nd |
Early Barremian |
|
Opaeopsomus |
Opaeopsomus wapellensis
|
Nd |
Callovian |
|
Operculodinium |
Operculodinium centrocarpum
|
Nd |
Late Maastrichtian |
|
Paragonyaulacysta |
Paragonyaulacysta spinisutura
|
Nd |
Kimmeridgian |
|
Paraireiana |
Paraireiana circularis
|
China(Sinkiang Uighur) |
Paleocene |
|
Paraireiana |
Paraireiana fusiformis
|
Nd |
Middle Eocene |
|
Paraireiana |
Paraireiana lamprota
|
Nd |
Early Eocene |
|
Paraireiana |
Paraireiana scabrata
|
China(Sinkiang Uighur) |
Paleocene |
|
Parascriniocassis |
Parascriniocassis krumbeckii
|
Nd |
Toarcian |
|
Pareodinia |
Pareodinia procerchagrinata
|
Nd |
Late Bajocian |
Callovian |
Pentadinium |
Pentadinium omasum
|
Nd |
Late Barremian |
|
Pentagonium |
Pentagonium obidum
|
Nd |
Late Eocene |
|
Peridinites |
Peridinites barbadensis
|
Nd |
Early Tertiary |
|
Peridinites |
Peridinites diodon
|
Nd |
Early Tertiary |
|
Peridinites |
Peridinites globosus
|
Nd |
Early Tertiary |
|
Peridinites |
Peridinites ovalis
|
Nd |
Early Tertiary |
|