Kosmoceras sp.
A gorgeous Kosmoceras sp. ammonite from the Riazan region of Russia. Incredible pyrite replaced ammonites. Natural shell exterior is well preserved. Middle Jurassic age. No repair or restoration. Authenticity guaranteed. Note - supply of these pyrite ammonites stopped in 2011. This is the last of my inventory.
XR223 Size: 1-1/8"
Adding 23 pyritized Ammonites in November 2021. Link to Pyritized ammonites.