Description

Early Permian
Arroyo Formation
Haskell county, TX, USA
Excellent 0.75 inch claw

Amphibian.

Eryops was one of the largest amphibians of its time (5-10 feet long) and it looked pretty chunky too.  Some individuals would have been large enough to fend off attacks of the synapsid predator, Dimetrodon, which is known from the same deposits.  You’ll see Erypos teeth for sale but not many claws with fossil amphibian claws being tough to find in general.