Hyracodon Fossil Leg Bone with Crystals, Tibia, Badlands, South Dakota, R1138

 
  

   

    

     Type: Fossil shin bone/Tibia from Hyracodon nebraskensis.  This specimen has the center marrow of the bone filled with quartz crystals.  This lot includes both pieces.
    


     
Locality: Private land in Pennington County, South Dakota
    


     
Age: Oligocene, 30 Million Years Ago