Nielson-Marsh, Christina, et al., “Biomolecules in fossil remains: Multidisciplinary approach to endurance,” The Biochemist, 12-14, June 2002
Last year, researchers estimated that the half-life of DNA — the point at which half the bonds in a DNA molecule are decayed as 521 years. ”
http://mathcentral.uregina.ca/beyond/articles/ExpDecay/Carbon14.html
The half-life of DNA is shorter than even Carbon 14 (half life of 5,730 years- 10 times longer than DNA) which is only considered valid on samples up to about 50,000 years old. Apply this to DNA with a half life of 521 years and DNA decay should be valid only for samples of about 5,000 years as a maximum!
Any article or scientific claim regarding the discovery of DNA in any fossil or sample indicates scientifically that the sample is less than 125,000 years old and such a claim is FALSE.
In light of the observable half-life of DNA decay, any conclusion regarding fossils (or any sample) which contains DNA and is also purported as also being greater a few thousand years old as factually invalid.
DNA delays at a known rate, therefore such time limits renders conclusions that both the sedimentary layers and the fossils within them are (as a maximum) 125,000 years old. Finally, because decay rates are observable in the present and rock layers which contain the fossils are not observable– the dating should be ruled by the half-life of DNA and not based on evolutionary time scales of millions of years.
Therefore these claims below (and many, many others) are falsified and debunked as “ancient” DNA:
![](http://temp.evolutionisamyth.com/wp-content/uploads/2019/10/ancient-bacteria2.jpg)
https://www.seeker.com/worlds-oldest-known-dna-discovered-1764980841.html
![](http://temp.evolutionisamyth.com/wp-content/uploads/2019/10/dino-dna-1024x576.jpg)
https://www.sciencemag.org/news/2017/01/scientists-retrieve-80-million-year-old-dinosaur-protein-milestone-paper
(Mary Schweitzer’s) papers have the potential to transform dinosaur paleontology into a molecular science, much as analyzing ancient DNA has revolutionized the study of human evolution.”
https://www.sciencemag.org/news/2017/01/scientists-retrieve-80-million-year-old-dinosaur-protein-milestone-paper
![](http://temp.evolutionisamyth.com/wp-content/uploads/2019/10/mosquitoes_thumb-1024x1024.jpg)
https://www.livescience.com/23861-fossil-dna-half-life.html
![](http://temp.evolutionisamyth.com/wp-content/uploads/2019/10/honey-bee2-1024x851.jpg)
By extracting gene fragments from insects preserved in amber for up to 40 million years, two independent teams of scientists have obtained the oldest DNA ever recovered from fossils.
https://www.nytimes.com/1992/09/25/us/40-million-year-old-extinct-bee-yields-oldest-genetic-material.html
![](http://temp.evolutionisamyth.com/wp-content/uploads/2019/10/rhino_fossil.jpg)
Read more: https://www.smithsonianmag.com/smart-news/million-year-old-rhino-tooth-provides-oldest-dna-data-180973117/#URcQVjLmY34JJPHr.99
![](http://temp.evolutionisamyth.com/wp-content/uploads/2019/09/neanderthal.jpg)
Researchers in 2016 salvaged about 50,000 base pairs of genetic code from fossils excavated from a Spanish cave.
http://discovermagazine.com/2017/jul-aug/ancient-dna