Radiocarbon dating dinosaur bones
Even when the glacial intervals of the British Quaternary are factored into the temperature calculations, the more conservative of these two estimates extends the range for collagen sequencing to the Lower Pleistocene as confirmed by the presence of collagen peptides in bones from the Weybourne Crag (~1.5 Ma).
In 2011, UK archaeologists and experts on bone collagen decay wrote that “it will take between 0.2 and 0.7 Ma [million years] at 10°C for levels of collagen to fall to 1% in an optimal burial environment.”Collagen survival and its use for species identification in Holocene-lower Pleistocene bone fragments from British archaeological and paleontological siteshttps:// have previously reported a technique using the dominant structural protein collagen (type I) as a source of genetic information for species identification in modern and relatively young (Holocene) archaeological samples. concentrations of the structural protein collagen have recently been reported in dinosaur fossils based primarily on mass spectrometric analyses of whole bone extracts.However, direct spectroscopic characterization of isolated fibrous bone tissues, a crucial test of hypotheses of biomolecular preservation over deep time, has not been performed.Carbon-14 has a short half-life less than 6,000 years, so both evolutionists and creationists agree that radiocarbon dating is only useful for dating relatively young things, thousands of years old, and is invalid for measuring alleged long ages of evolution.Items older than 250,000 years (at most) should be completely ‘carbon-14 dead’, with no carbon-14 remaining at all.If kept below freezing, it might be imagined to last one or two million years at the very most.
But evolutionary biologists agree that dinosaurs lived in a very warm climate, so in their scenario, this would vastly shrink the times—at 20°C, collagen would have decomposed below the detection limit in about 15,000 years A team of researchers from North Carolina State University and the Palo Alto Research Center (PARC) has found more evidence for the preservation of ancient dinosaur proteins, including reactivity to antibodies that target specific proteins normally found in bone cells of vertebrates.
We report a systematic investigation of amino acid composition and collagen peptide mass fingerprints (PMF), for a range of samples dating back approximately 1.5 million years.
Extrapolation from high temperature experimental decomposition rates predict that at a constant 10°C (the approximate mean annual air temperature in Britain today) it will take between 0.2 and 0.7 Ma for levels of collagen to fall to 1% of their original concentration in an optimal burial environment.
Dinosaur Soft Tissue is Original Biological Material Soft tissue cannot remain non-permineralized for millions of years. The best explanation is in my view that the fossils are younger than thought for a long time.
Bedding plane specimen of Leanchoilia superlata from the middle Cambrian Burgess Shale (Butterfield, 2002) showing characteristic flattening of degradation-resistant cuticle (original organic-carbon preservation)Proteins may afford us the opportunity to recover genetic information from warmer environments, where attempts to recover ancient DNA are less sure of sucess.
Cambodian Temple Stegosaurus, 1999, 2000, 2001, 2005, 2006, 2011, Randy S.