Achomosphaera |
Achomosphaera sp
|
Japan(Hokkaido I.) |
Oligocene |
|
Batiacasphaera |
Batiacasphaera hirsuta
|
Japan(Hokkaido I.) |
Oligocene |
|
Brigantedinium |
Brigantedinium sp
|
Japan(Hokkaido I.) |
Oligocene |
|
Cyclammina |
Cyclammina
|
Japan(Hokkaido I.) |
Oligocene |
|
Deflandrea |
Deflandrea phosphoritica
|
Japan(Hokkaido I.) |
Oligocene |
|
Hexagonifera |
Hexagonifera sp.A
sp. nov. |
Japan(Hokkaido I.) |
Oligocene |
|
Operculodinium |
Operculodinium centrocarpum
|
Japan(Hokkaido I.) |
Oligocene |
|
Operculodinium |
Operculodinium israelianum
|
Japan(Hokkaido I.) |
Oligocene |
|
Paralecaniella |
Paralecaniella indentata
|
Japan(Hokkaido I.) |
Oligocene |
|
Pyxidinopsis |
Pyxidinopsis pastilliformis
|
Japan(Hokkaido I.) |
Oligocene |
|
Spiniferites |
Spiniferites ramosus
|
Japan(Hokkaido I.) |
Oligocene |
|
Spiniferites |
Spiniferites sp
|
Japan(Hokkaido I.) |
Oligocene |
|
Trinovantedinium |
Trinovantedinium boreale
|
Japan(Hokkaido I.) |
Oligocene |
|