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Found 3 results

  1. Oxytropidoceras
    1.75-Billion-Year-Old Fossils Are Oldest Record of Oxygenic Photosynthesis The preserved structures show a process that gave rise to life as we know it. By Isaac Schultz, GIZMODO, January 3, 2023 Photosynthesis Evolved as Early as 1.75 Billion Years Ago, Microfossils Suggest Jan 3, 2024 by Enrico de Lazaro. SciNews The paywalled paper is; Demoulin, C.F., Lara, Y.J., Lambion, A. et al. Oldest thylakoids in fossil cells directly evidence oxygenic photosynthesis. Nature (2024). Yours, Paul H.
  2. Oxytropidoceras
    A Slowdown in Earth’s Rotation Could Have Affected the Oxygen Content of the Atmosphere Max Planck Institute, August 2, 2021 The open access paper is: Klatt, J.M., Chennu, A., Arbic, B.K. et al., 2021 Possible link between Earth’s rotation rate and oxygenation. 2 August 2021, Nature Geoscience. DOI: 10.1038/s41561-021-00784-3 A fascinating talk about variations in tides and non-uniform rates of change in Earth's rotation is: A journey through tides in Earth's History Mattias Green, Seds Online, Oct 22, 2000 and Blackledge, B.W., Green, J.A.M., Barnes, R. and Way, M.J., 2020. Tides on Other Earths: Implications for Exoplanet and Palaeo‐Tidal Simulations. Geophysical Research Letters, 47(12), p.e2019GL085746. Yours, Paul H.
  3. Oxytropidoceras
    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.
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