Dating dinosour bones

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In most cases, microbes feast on a dead animal's soft tissue, destroying it within weeks.The tissue must be something else, perhaps the product of a later bacterial invasion, critics argued.Then, in 2007, Schweitzer and her colleagues analyzed the chemistry of the proteins.They found the proteins really did come from dinosaur soft tissue.The Triceratops brow horn was excavated in May 2012 and stored at the Glendive Dinosaur and Fossil Museum.

They try to solve this problem by proposing that bone protects the cells from bacteria that cause degradation.Mr Miller sent the sample to the University of Georgia, Center for Applied Isotope Studies, for this purpose.The sample was divided at the lab into two fractions with the “bulk” or collagen break down products yielding an age of 33,570 ± 120 years and the carbonate fraction of bone bioapatite yielding an age of 41,010 ± 220 years [UGAMS-11752 & 11752a].While there have been claims that some dinosaurs could have been up to 220 tons, these estimates remain controversial as they are based on a small number of bones.The discovery in Patagonia, where work is ongoing to find the head and other missing bones, is particularly significant because of the large number of bones and the high degree of preservation of their features.

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