This is a fossil dugong veterbra process (Metaxytherium Floridanum) that was recovered from the Peace River in the Bone Valley formation of Florida (Miocene Period, approx. 7-14 million years ago). This piece measures approx. 3 inches by 2 inches. This specimen is well mineralized and is very solid.
Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown.