| A horse jaw fragment from the Pliocene Coso Formation, Coso Mountains, California--a specimen roughly 3.5 to 3.0 million years old. Photograph snapped with a Nikon CoolPix 995 digital camera. |
| A horse jaw fragment from the Pliocene Coso Formation, Coso Mountains, California--a specimen roughly 3.5 to 3.0 million years old. Photograph snapped with a Nikon CoolPix 995 digital camera. |