4Fossil sites
Ushimaru Formation
Ushimaru Formation in Japan: 4 fossil sites. Typical age: 162–143 million years (Jurassic).
4Fossil sites
0Finds
162–143 million yearsTypical age
JurassicMain period
Where its fossils were found
Jurassic
By geological period
Jurassic4
Towns with the most fossil sites nearby
Other formations of the same period
Jurassic