Where Tracks Were Made

     Dinosaurs made tracks where ever they went, but it was only in sediment that they were preserved.  The sediment was either continental in origin or from very shallow coastal sediment where the dinosaurs could wade.  The moist sediment needed for preservation was present in places such as beaches, tidal flats, lagoons, swamps, river banks, and lakes.  Since quadruped dinosaurs preferred dry, wooded areas, there prints were preferentially destroyed.  Thus, the fossil record is biased toward the bipedal dinosaur tracks.

Size and shape of typical tracksites.  (Lockley, 1991)