7Fossil sites
Arrey Formation
Arrey Formation in the United States: 7 fossil sites. Typical age: 359–299 million years (Carboniferous).
7Fossil sites
0Finds
359–299 million yearsTypical age
CarboniferousMain period
Where its fossils were found
Carboniferous
By geological period
Carboniferous7
Towns with the most fossil sites nearby
Other formations of the same period
Carboniferous
Graham Formation 274Carbondale Formation 141Fayetteville Formation 123Cherokee Shale 102Allegheny Formation 94Gaptank Formation 84Tin Mountain Formation 70Winchell Formation 68Pottsville Formation 66Amsden Formation 66Bangor Limestone 59Heath Formation 59Pocono Formation 56Johns Valley Formation 54Bloyd Formation 51Hale Formation 50Pitkin Formation 49Foraker Limestome Formation 47Wild Cow Formation 47Chainman Formation 47Fort Payne Formation 45Stanton 44Muldraugh Formation 43Fort Payne Chert Formation 40