Hyracodon nebrascensis

Rare Hyracodon Fossil Jaw on Oak Stand, Badlands, South Dakota, Oligocene, R1137

Hyracodon Upper Teeth, Fossil, South Dakota Badlands, Oligocene, Free Ship R1113

Hyracodon Jaw Section, Fossil, South Dakota Badlands, Oligocene R1099

Hyracodon Jaw Section Fossil, South Dakota Badlands, Oligocene, R1095

Hyracodon Jaw Section Fossil, South Dakota Badlands, Oligocene, R1090

Hyracodon Fossil Ankle Bone, Astragalus, Badlands, South Dakota, Oligocene R1125

Hyracodon Associated Teeth, Fossils, South Dakota, Oligocene, R1052

Hyracodon Upper Teeth on Matrix, Fossil, South Dakota, Badlands, Oligocene R875

Hyracodon Crossed Jaw on Matrix, Fossil, South Dakaota, Oligocene, R1079

Hyracodon Upper Molar Section, Fossil, Badlands, South Dakota, Oligocene, R895

Hyracodon Fossil C2 Neck Vertebra, Badlands, South Dakota Oligocene, R1001

Hyracodon Lower Tooth, Fossil, Badlands, South Dakota, Oligocene, R864