143Fossil sites
Hashikadani Formation
Hashikadani Formation in Japan: 143 fossil sites. Typical age: 254–252 million years (Permian, Triassic).
143Fossil sites
0Finds
254–252 million yearsTypical age
PermianMain period
Where its fossils were found
TriassicPermian
By geological period
Triassic5
Permian138
Towns with the most fossil sites nearby
Other formations of the same period
Permian
Akasaka Formation 174Nabeyama Formation 61Kanokura Formation 51Kamiyozawa Formation 48Kamiyasse Formation 41Toyoma Formation 30Mitai Formation 26Iwato Formation 21Shomaru Formation 14Hoso-o Formation 13Ochiai Formation 11Sakamotozawa Formation 10Moribu Formation 10Senmatsu Formation 10Iwaizaki Formation 9Sakamotosawa Formation 9Mizuyagadani Formation 8Tatsuno Formation 8Takakurayama Formation 7Akiyoshi Formation 6Nakadaira Formation 5Shigejizawa Formation 5Miharanoro Formation 5Mikata Formation 5