Crusty I don’t think people realize how much material settles to the ocean floor on a daily basis and how it builds up over time. Nor do they realize just how much of the world was covered in water. On the ranch we find saltwater oyster beds in layers deposited along the hill’s. I think we’re 2300 ft above sea level yet at one time we were the ocean floor.
Yes, those are the remnants of the Cretaceous seas that ran from Alaska all the way down past the east side of the Rockies to Texas. I went on many a field trip to go look at those outcrops near Post and then some much older rocks out near Possum Kingdom. I still have bags of the same oyster shells and numerous other fossils. Those mesas that are now covered with #$%^& windmills are the erosional remnants of the same beds that outcrop in the Hill Country. Lots of dinosaur fossils in the red beds out there. I found part of a rib bone once. Some of the oldest birds in the world have been found in and around Post. The red beds are older rocks called the Triassic, which is the period just before the Jurassic. The oil production in the Permian Basin is from still older rocks.