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Showing results for tags 'molecular clock'.
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Terrestrial Millipede-like creature lived in Scotland 425 million years ago
Oxytropidoceras posted a topic in Fossil News
Scientists find oldest fossil of a land animal Millipede-like creature lived in Scotland 425 million years ago, Thomson Reuters, Jun 01, 2020 https://www.cbc.ca/news/technology/oldest-land-animal-1.5592917 M. E. Brookfield , E. J. Catlos & S. E. Suarez, 2020, Myriapod divergence times differ between molecular clock and fossil evidence: U/Pb zircon ages of the earliest fossil millipede-bearing sediments and their significance, Historical Biology Received 26 Feb 2020, Accepted 27 Apr 2020, Published online: 15 May 2020 https://www.researchgate.net/publication/341358567_Historical_Biology_Myriapod_divergence_times_differ_between_molecular_clock_and_fossil_evidence_UPb_zircon_ages_of_the_earliest_fossil_millipede-bearing_sediments_and_their_significance_Myriapod_diver https://www.researchgate.net/publication/341420627_Myriapod_divergence_times_differ_between_molecular_clock_and_fossil_evidence_UPb_zircon_ages_of_the_earliest_fossil_millipede-bearing_sediments_and_their_significance https://www.researchgate.net/profile/Elizabeth_Catlos https://www.tandfonline.com/doi/abs/10.1080/08912963.2020.1762593?journalCode=ghbi20 Yours, Paul H.-
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Land plants arose earlier than thought—and may have had a bigger impact on the evolution of animals By Elizabeth Pennisi, Feb. 19, 2018 http://www.sciencemag.org/news/2018/02/land-plants-arose-earlier-thought-and-may-have-had-bigger-impact-evolution-animals Plants may have colonized Earth's surface 100 MILLION years earlier than previously thought, Press association, Daily Mail, Feb. 19, 2018 http://www.dailymail.co.uk/sciencetech/article-5410161/New-research-pushes-history-land-plants-100-million-years.html Morris, JL, Puttick, M, Clark, J, Edwards, D, Kenrick, P, Pressel, S, Wellman, CH, Yang, Z, Harald, S & Donoghue, P, 2018, ‘The timescale of early land plant evolution: controlling for competing topologies and dating strategies on divergence time estimates’. Proceedings of the National Academy of Sciences. http://www.bristol.ac.uk/earthsciences/people/mark-n-puttick/pub/142491407 http://www.bristol.ac.uk/earthsciences/people/mark-n-puttick/index.html Yours, Paul H.
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Re-Os Dates Indicate that Photosynthesis Started about 1.25 Ga
Oxytropidoceras posted a topic in Fossil News
World’s oldest algae fossils date back 1 billion years, says new research, Intelligencer, December 24, 2017 https://www.mcgill.ca/channels/channels/news/origins-photosynthesis-plants-dated-125-billion-years-ago-283492 https://www.lintelligencer.com/worlds-oldest-algae-fossils-date-back-1-billion-years-says-new-research-419-2017/ First photosynthesis took place 1.25 billion years ago: Study Economic times, Dec 24, 2017 https://economictimes.indiatimes.com/news/science/first-photosynthesis-took-place-1-25-billion-years-ago-study/articleshow/62231708.cms The paper is; Gibson, T.M., Shih, P.M., Cumming, V.M., Fischer, W.W., Crockford, P.W., Hodgskiss, M.S., Wörndle, S., Creaser, R.A., Rainbird, R.H., Skulski, T.M. and Halverson, G.P., 2017. Precise age of Bangiomorpha pubescens dates the origin of eukaryotic photosynthesis. Geology. https://pubs.geoscienceworld.org/gsa/geology/article-abstract/524864/Precise-age-of-Bangiomorpha-pubescens-dates-the Yours, Paul H.- 1 reply
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- algae
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