Carbon dating dino bones
This is on private land in Dawson County, Montana being located in the NW ¼ of NE ¼, Sec. The location of this RC dated Triceratops singular femur bone is just over 2.4 km east southeast from Otis Kline's 37 acre research station that has been geologically mapped. The elevation appears to be the same as the Triceratops being excavated on Kline's "Lone Ridge" for the past three summers where no femur bones were discovered.Possibly the RC dated femur bone belongs to the Triceratops remnants from "Lone Ridge." Thus testing for C-14 in other bones seems to be the next step in the ongoing research.
Because of its proximity to the surface, the paleontologists had to contend with some roots of living plant material before reaching the bone.Perhaps the most informative documentation of Figs.1 and 2 is that they show the sequence of excavating a 122 cm long Triceratops femur from discovery, to pedestal, to plaster, to separation. Photos 3a-3c are of Triceratops femur bone during and after sawing; photo 3d is a portion of Glendive MT Dinosaur and Fossil Museum field research station; photomacrograph 3e is of material from bone interior containing bone collagen.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.Nonetheless, dinosaur bone apatite had been successfully RC dated in the late 1980's/early 1990's and significant amounts of C-14 were detected and reported.
The data was challenged by Thomas Stafford as poor science due to assumed contamination from modern C-14 with younger surficial calcium carbonate.
It is very slippery in wet, and crunchy in dry condition, according to paleontologist Otis Kline.
Triceratops and Hadrosaur locations: The exact location for the Triceratops femur is 47 degrees 6 minutes & 18 seconds North by 104 degrees, 39 minutes & 22 seconds West. The highest nearby point is approximately 201 m southwest of the find and is 669 m above sea level.
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.
Fig.3a shows the Triceratops femur dissection using carefully cleaned saw with the bone supported by wood frame and plaster of Paris cast.