Takinoue Formation [details]
Kokumoto Formation [details]
Koshiba Formation [details]
Miyakura Formation [details]
Chokai Formation [details]
Yamaga Formation [details]
Nephrolepidina Horizon [details]
Moniwa Formation [details]
Shirahama (Susaki) Formation [details]
Nissikutan Formation [details]
Donny Formation [details]
Tsunaki Formation [details]
Nanao Formation [details]
Kiwada Formation [details]
Nakamura Formation [details]
Aijiri Formation [details]
Kawabata Formation [details]
Donny-Tagpochau Formation [details]