Ovoidinium |
Ovoidinium ostium
|
Nd |
Nd |
|
Ovoidinium |
Ovoidinium torrulosum
|
Nd |
Nd |
|
Ovoidinium |
Ovoidinium turritum
|
Nd |
Nd |
|
Palaeoperidinium |
Palaeoperidinium cornutum
|
Nd |
Nd |
|
Palaeoperidinium |
Palaeoperidinium hansonianum
|
Vermont |
Late Oligocene |
|
Palaeostomocystis |
Palaeostomocystis elongata
|
Nd |
Nd |
|
Palaeostomocystis |
Palaeostomocystis pachytheca
|
Australia(W.Australia) |
Albian |
Cenomanian |
Palaeostomocystis |
Palaeostomocystis reticulata
|
Nd |
Nd |
|
Pareodinia |
Pareodinia aceras
|
Nd |
Nd |
|
Pareodinia |
Pareodinia tripartita
|
Nd |
Nd |
|
Pareodinia |
Pareodinia tripartita
|
Nd |
Nd |
|
Parvocavatus |
Parvocavatus
|
Nd |
Nd |
|
Pentadinium |
Pentadinium
|
Nd |
Nd |
|
Pentadinium |
Pentadinium laticinctum
|
Nd |
Nd |
|
Pentadinium |
Pentadinium laticinctum
|
Nd |
Nd |
|
Pentadinium |
Pentadinium laticinctum
|
Nd |
Nd |
|
Pentadinium |
Pentadinium taeniagerum
|
Nd |
Nd |
|