Clearly the land animals were alive when they made the prints, so the floodwaters had not yet peaked.
In order to avoid such an interpretation, the sand deposits with the large cross-beds have been interpreted as forming in a desert. This switch implies a puzzling sequence of environments.
How could there have been a fast flowing river system, followed by a dry desert, followed by another river system?
These beds indicate that the water was flowing as the sediment was deposited.
Some of the cross-beds are very large, so large that they indicate water flows of biblical proportions.
reporter Mark Horstman says, “You’ve gotta be quick to study the fossils here. The program shows Steve Salisbury measuring a recently-exposed sauropod footprint about 1.7 metres long—a world record.