 
          In 1879, Lakes found part of another
        
        
          Stegosaurus. This skeleton had more
        
        
          bones. It was a dinosaur, not a turtle!
        
        
          Other
        
        
          
            species
          
        
        
          were soon found. They
        
        
          became part of the stegosaurid
        
        
          
            family
          
        
        
          .
        
        
          These dinosaurs walked on four legs. They
        
        
          all had bony back plates. They also had
        
        
          long spikes on their tails.
        
        
          
            Finding
          
        
        
          
            Stegosaurus’s
          
        
        
          
            Family
          
        
        
          L O A D I N G L O A D I N G L O A D I N G
        
        
          . . .
        
        
          . . .
        
        
          . . .
        
        
          L O A D I
        
        
          L O A D I N G
        
        
          . .
        
        
          . . .
        
        
          .
        
        
          13