Dating fossil framework man
Photos were unavailable for the Hadrosaur femur excavation. 1a -1d (right) shows the sequence of extracting the Triceratops femur.In Fig.1-d it rests on the pedestal of earth after excavation and before adding the protective coating. 1a to 1d as the Triceratops femur bone was being extracted from about 1 m in depth, which was about 20 m below the top of the Montana Badlands [60 m of strata designated Cretaceous].Inspection of the femur cross section in Fig.3b revealed dried up Haversian systems and very little apparent mineralization.Samples from different interior locations were easily removed by hand with a with a stainless steel scoop-type instrument as shown in Fig.3c and placed in plastic bags for further study.At that time, much of the region was part of river-plains similar to the present southeastern United States with sub-tropical climate and vegetation of the Cretaceous period or the Age of Reptiles.Rivers draining the Western Mountains deposited layer upon layer of sediments which over alleged millions of years compacted to form the sandstones, mudstones, clays, and shales that form the Montana Badlands landscape according to the Makoshika State Park web site. It usually refers to any clay that swells and shrinks.
No collagen was detected and only bone bio-apatite was RC dated.It can also be seen from Fig.1a that the femur was located very close to the surface.