Juvenile Hyracodon Jaw, Fossil, South Dakota Badlands, Oligocene R1066

 
  
  

   
    Type:
   
   Fossil jaw section/mandible from a juvenile
   
    Hyracodon nebraskensis
   
   . Note the wisdom tooth still erupting from the mandible.
  
  

   

   
    Locality:
   
   Private land in Pennington County, South Dakota
  
  

   

   
    Age:
   
   Oligocene, 30 Million Years Ago
  
  

   

  
  

   
    Weight:
   
   5 ounces