Wow, lol. Did you miss my last post??? I said: "Why should there be many river valleys, when the excerpt I gave you spoke of the ocean periodically submerging the land in water and creating a "pancake" effect of sediments?" The ocean submerging the land when the median sea level rose due to the polar ice caps melting and then the ocean recessing off it when the ice caps froze again. I thought it was pretty straightforward. Bones and teeth are not just inorganic minerals, but contain a significant amount of organic matter. This matter either decays or is replaced by mineralssuch as silica, calcite, or ion, or forms complex compounds by combining with these minerals. The replacement or combining takes place on a microscopic scale, so that tiny spaces around the inorganic matrix of the bone are filled with the new minerals. The resulting mineralized bone is thus a combination of the orginal inorganic bone matrix and the new minerals. Basically, fossils of dinos and other ancient creatures from millions of years ago are not actual bones, they are bones turned into mineralized rocks. Mineralization takes literally millions of years. Not one or two months.