1.64" (4.2 cm) pair of Hyracodon upper molars. from the Brule Formation of Custer County, South Dakota. 35-30 million years old.
Authentic, legally collected fossils for sale.
1.64" (4.2 cm) pair of Hyracodon upper molars. from the Brule Formation of Custer County, South Dakota. 35-30 million years old.