14Fossil sites
Shomaru Formation
Shomaru Formation in Japan: 14 fossil sites. Typical age: 290–283 million years (Permian).
14Fossil sites
0Finds
290–283 million yearsTypical age
PermianMain period
Where its fossils were found
Permian
By geological period
Permian14
Towns with the most fossil sites nearby
Other formations of the same period
Permian
Akasaka Formation 174Hashikadani Formation 143Nabeyama Formation 61Kanokura Formation 51Kamiyozawa Formation 48Kamiyasse Formation 41Toyoma Formation 30Mitai Formation 26Iwato Formation 21Hoso-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