Hyracodon Upper Molar, Fossil, South Dakota, Badlands, Oligocene, 30Mya, R903

 
  
  

   

    

     
      Type:
     
     This is a fossil upper molar from
     
      Hyracodon nebraskensis
     
     .
    
    

     

     
      Locality:
     
     Private land in Pennington County, South Dakota
    
    

     

     
      Age:
     
     Oligocene, 30 Million Years Ago
    
    

     

    
    

     
      Note:
     
     Ruler increments are 1/16 inch.