Social Behavior

      The orientation of a dinosaur track assemblage can be random or preferred.  A random assemblage is typically found at the site of what was a water hole, or a feeding ground.  These tracks vary with time and origin.  A preferred assemblage provides evidence for traveling routes and even herding.  A traveling route may have been dictated by the physical geography of the area, such as a valley that led to a good food source.  Herding has been observed in the large herbivorous dinosaurs.  The Davenport Ranch site in Texas, shown here, is evidence of a herd containing at least 23 dinosaurs all traveling in the same direction.

Parallel trackways at Davenport Ranch.  (Lockley, 1991)