Petrification of a complete turtle armor from the age of the oligocene, approx. 30 million years old, the location are the White River Badlands, approx. 14 cm long and 6 cm high. The process of petrification is called fossilization. [hint: this is an automatic translation from German]   |   Category: Fossilizations   |   Material: Stein   |   Country of origin: South Dakota, United States | Similar pieces