List of biostratigraphic zones of Japan
# List of biostratigraphic zones of Japan

This list is of the biostratigraphic zones of Japan. The determinant Cretaceous "indices" being local species of Inoceramidae and Desmoceratoidea, the schema also differs from that of other $regions.^{:55}$

## Cretaceous

| Japanese time scale | Japanese time scale | ICS | ICS |
| - | - | - | - |
| Japanese time scale | Japanese time scale | Stage / Age | System / Period |
| Miyakoan (宮古統) | Lower Miyakoan (宮古統下部階) | Aptian | Lower Cretaceous |
| Miyakoan (宮古統) | Upper Miyakoan (宮古統上部階) | Albian | Lower Cretaceous |
| Miyakoan (宮古統) | Infragyliakian | Cenomanian | Upper Cretaceous |
| Gyliakian (ギリヤーク統) | Lower Gyliakian (ギリヤーク統下部階) | Cenomanian | Upper Cretaceous |
| Gyliakian (ギリヤーク統) | Upper Gyliakian (ギリヤーク統上部階) | Turonian | Upper Cretaceous |
| Urakawan (浦河統) | Lower Urakawan (浦河統下部階) | Coniacian | Upper Cretaceous |
| Urakawan (浦河統) | Upper Urakawan (浦河統上部階) | Santonian | Upper Cretaceous |
| Urakawan (浦河統) | Infrahetonaian | Campanian | Upper Cretaceous |
| Hetonaian (ヘトナイ統) | Lower Hetonaian (ヘトナイ統下部階) | Campanian | Upper Cretaceous |
| Hetonaian (ヘトナイ統) | Upper Hetonaian (ヘトナイ統上部階) | Maastrichtian | Upper Cretaceous |

## Palaeogene and Neogene

Palaeogene and Neogene stages in western Japan include (from the Middle Eocene to the Early $Miocene):^{:640}$

* Takashiman (高島階)
* Okinoshiman (沖ノ島階)
* Funazuan (船津昔)
* Mazean (間瀬昔)
* Nishisonogian (西彼杵昔)
* Saseboan (佐世保階)

Other Neogene stages include:

* Haranoyan (原谷階)
* Tozawan (戸沢階)
* Kaburan (カブラ階)
* Fujian (富士階)
* Yuian (由比階)
* Totomian (遠江階)
* Suchian (周智階)
* Kechienjian (結縁寺階)
* Yuzanjian (湯山寺階)
