10Fossil sites
Omma Formation
Omma Formation in Japan: 10 fossil sites. Typical age: 3–1 million years (Quaternary, Neogene).
10Fossil sites
0Finds
3–1 million yearsTypical age
QuaternaryMain period
Where its fossils were found
QuaternaryNeogene
By geological period
Quaternary9
Neogene1
Towns with the most fossil sites nearby
Other formations of the same period
Quaternary
Naha Formation 72Uonuma Formation 37Sobe Formation 25Miyako-jima Formation 16Shinzato Formation 11Ryukyu Formation 10Dainichi Formation 10Namba Formation 8Narita Formation 7Nakazato Formation 6Toshima Sand Formation 6Gamo Formation 6Kurotaki Formation 5Ryukyu Limestone 5Chinen Formation 5Hijikata Formation 5Daito Formation 5Miyajima Formation 5Tsumori Formation 5Nakoshi Formation 4Sanuki Formation 4Setana Formation 4Tokyo Formation 4Saijo Formation 4