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  1. https://www.sciencedaily.com/releases/2021/08/210811113120.htm "over the last 20,000-50,000 years birds have undergone a major extinction event, inflicted chiefly by humans, which caused the disappearance of about 10%-20% of all avian species" "68% of the flightless bird species known to science became extinct"
  2. doushantuo

    end permian petrology

    Contributions to Mineralogy and Petrology (2021) 176:49 Geochemistry of deep Tunguska Basin sills, Siberian Traps: correlations and potential implications for the end‑Permian environmental crisis S. Callegaro · H. H. Svensen · E. R. Neumann · A. G. Polozov · D. A. Jerram · F. M. Deegan · S. Planke·O. V. Shiganova · N. A. Ivanova · N. V. Melnikov Callegarocmp_LIP_eventpermianTunguskaBasi.pdf
  3. Mysterious event nearly wiped out sharks 19 million years ago By Yasemin Saplakoglu, Live Science, June 3, 2021 "It's unknown whether the ancient sharks died off in a single day, weeks, years or even thousands of years." The paper is: Elizabeth C. Sibert and Leah D. Rubin, 2021 An early Miocene extinction in pelagic sharks Science 04 Jun 2021: Vol. 372, Issue 6546, pp. 1105-1107 DOI: 10.1126/science.aaz3549 Yours, Paul H.
  4. Ancient kauri trees capture last collapse of Earth’s magnetic field By Paul Voosen, Science, February 18, 2021 Ancient Trees Show When The Earth's Magnetic Field Last Flipped Out By Nell Greenfield-Boyce, Short Wave, NPR, February 18, 2021 Buried treasure - subfossil swamp kauri By Kate Evans, New Zealand Geographic Voosen, P., 2021, Kauri trees mark magnetic flip 42,000 years ago Science. vol. 371, Issue 6531, pp. 766 DOI: 10.1126/science.371.6531.766 The paper is: Cooper, A., Turney, C.S.M., Palmer, J. and others
  5. Burning Fossil Fuels Helped Drive Earth’s Most Massive Extinction https://www.nytimes.com/2020/11/18/science/extinction-global-warming.html?surface=home-discovery-vi-prg&fellback=false&req_id=829253552&algo=identity&imp_id=724592622&action=click&module=Science Technology&pgtype=Homepage
  6. Oxytropidoceras

    Why did trilobites go extinct?

    Why did trilobites go extinct? By Donavyn Coffey, Live Science, November 2020 https://www.livescience.com/why-trilobites-went-extinct.html The open access paper is: Jonathan L. Payne, Alexandra V. Turchyn, Adina Paytan, Donald J. DePaolo, Daniel J. Lehrmann, Meiyi Yu, and Wei, Calcium isotope constraints on the end-Permian mass extinction. PNAS May 11, 2010 107 (19) 8543-8548 https://www.pnas.org/content/107/19/8543 A totally unrelated article is: The role of cat eye narrowing in cat-human communication by El
  7. Hi everyone, Last year we visited a dinosaur show (I believe something like "DinoExpo") in our area in the Alsace (France), where they screened a film about the meteor-strike that killed the dinosaurs. It was spoken in French (though could of course have been voiced-over) and I hadn't seen it before. However, my wife, who normally isn't overly interested in anything dinosaur liked it a lot, to the extent of asking me afterwards whether I could find it so she could finish watching it. As I don't know where to start on it, I thought I'd ask here... So, the documentary's m
  8. For ancient deep-sea plankton, a long decline before extinction University of Buffalo, Press release by Charlotte Hsu Sheets, H.D., Mitchell, C.E., Melchin, M.J., Loxton, J., Štorch, P., Carlucci, K.L. and Hawkins, A.D., 2016. Graptolite community responses to global climate change and the Late Ordovician mass extinction. Proceedings of the National Academy of Sciences, 113(30), pp.8380-8385. Researchgate PDF for above paper Related publications Yours, Paul H.
  9. Exploding stars may have caused mass extinction on Earth, study shows, University of Illinois at Urbana-Champaign, August 18, 2020 "Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researchers said, and finding certain radioactive isotopes in Earth's rock record could confirm this scenario." The open access paper is: Brian D. Fields, Adrian L. Melott, John Ellis, Adrienne F. Ertel, Brian J. Fry, Bruce S. Lieberman, Zhenghai Liu, Jesse A. Miller, Brian C. Thomas. Super
  10. They sequenced 14 woolly rhino genomes and found that they co-existed with humans for thousands of years with stable population sizes. They then conclude that humans did not cause the extinction, but warming of the climate did. What if wooly rhino just tasted bad? Then humans wouldn't hunt them until the other megafauna were extinct. Or we invented barbeque sauce. Then they would disappear in a blink of an eye. Anyway here's the news article: https://phys.org/news/2020-08-ancient-genomes-woolly-rhinos-extinct.html
  11. Asteroid shower rained space rocks on Earth and the moon 800 million years ago By Charles Q. Choi, SpaceCom, July 21, 2020 Asteroid shower on the Earth-Moon system 800 million years ago revealed by lunar craters by Osaka University, PhysOrg, July 21, 2020 The open access paper is: Terada, K., Morota, T. & Kato, M. Asteroid shower on the Earth-Moon system immediately before the Cryogenian period revealed by KAGUYA. Nature Communications (2020). DOI: 10.1038/s41467-020-17115-6 Yours, Paul H.
  12. dinosaur man

    The Great Dyings time

    Just found this about the Permian extinction/the great dying, earths greatest mass extinction. https://www.artsci.utoronto.ca/news/geochronologists-shed-light-earths-greatest-mass-extinction
  13. News article: https://www.miragenews.com/fossil-discoveries-reveal-cause-of-megafauna-extinction/ Open access article: https://www.nature.com/articles/s41467-020-15785-w
  14. Racki, G., 2020, Volcanism as a prime cause of mass extinctions: Retrospectives and perspectives, in Adatte, T., Bond, D.P.G., and Keller, G., eds., Mass Extinctions, Volcanism, and Impacts: New Developments: Geological Society of America Special Paper 544, p. 1–34 https://www.researchgate.net/publication/337951571_Volcanism_as_a_prime_cause_of_mass_extinctions_Retrospectives_and_perspectives https://www.researchgate.net/profile/Grzegorz_Racki Racki, G., Rakociński, M., Marynowski, L. and Wignall, P.B., 2018. Mercury enrichments and the Frasnian-Fa
  15. I read "The Story of the Dinosaurs in 25 Discoveries" by Donald R. Prothero. The author states that paleontologists now mostly do not think that the Chicxulub metor impact killed off the non-avian dinosaurs, and that other explainations are preferred. He did not really explain this statement. That certainly was news to me! I am no professional though. What's the truth?
  16. One of World's Largest Freshwater Fish May Be First Official Extinction of 2020 By Stephanie Pappas, Live Science, January 07, 2020 https://www.livescience.com/chinese-paddlefish-extinct.html This enormous ancient fish is officially extinct By Eva Frederick, Science, Jan. 7, 2020 https://www.sciencemag.org/news/2020/01/enormous-ancient-fish-officially-extinct The paper is: Zhang, H., Jarić, I., Roberts, D.L., He, Y., Du, H., Wu, J., Wang, C. and Wei, Q., 2020. Extinction of one of the world's largest freshwater fishes: L
  17. Human impact on nature 'dates back millions of years' By Helen Briggs, BBC News, January 20, 2020 https://www.bbc.com/news/science-environment-51068816 The open access paper is: Faurby, S., Silvestro, D., Werdelin, L. and Antonelli, A., Brain expansion in early hominins predicts carnivore extinctions in East Africa. Ecology Letters. https://onlinelibrary.wiley.com/doi/abs/10.1111/ele.13451 https://www.ncbi.nlm.nih.gov/pubmed/31943670 Yours, Paul H.
  18. Tidgy's Dad

    My Dear Cousins

    Somehow, I find this terribly sad. https://www.bbc.com/future/article/20200128-how-did-the-last-neanderthals-live
  19. Does anyone know of anywhere that sells anything from the Permian extinction layer? I have matrix/micro glass beads from the KT boundary layer, but I can’t find anything like that from the Permian/Triassic boundary layer, but I can’t imagine there just wouldn’t be anything for sale anywhere, so I was wondering if anyone could point me in the right direction. I’d be curious about remnants of any extinction, but I’m specifically interested in anything Permian extinction.
  20. I have been asked this question many times. The non avian Dinosaurs died out the the end of the Mesozoic but many other animal groups survived. Among them were the Crocodilians. And people ask me all the time how they survived while the Dinosaurs didn't. So this has inspired me to make my first video on my dedicated Paleontology channel, Paleo Analysis. I am making these videos for the purpose of education so feel free to share this video as well as future videos! https://youtu.be/Gan8Vu4oM0w
  21. New evidence that an extraterrestrial collision 12,800 years ago triggered an abrupt climate change for Earth, the Conversation, October 22, 2019 https://theconversation.com/new-evidence-that-an-extraterrestrial-collision-12-800-years-ago-triggered-an-abrupt-climate-change-for-earth-118244 the paper is: Moore, C.R., M.J. Brooks, A.C. Goodyear, T.A. Ferguson, A.G. Perrotti, S. Mitra, A. Listecki, B. King, D.J. Mallinson, C.S. Lane, B. Shapiro, J. Knapp, A. West, D.L. Carlson, W. Wolbach, T.R. Them, S.M. Harris, and S. Pyne-O’Donne
  22. VAIMCLOUH End-Permian (252 Mya) deforestation, wildfires and flooding—An ancient biotic crisis with lessons for the present Vivi Vajda,, StephenMcLoughlin, Chris Mays, Tracy D.Frank, Christopher R.Fielding, AllenTevyaw, Veiko Lehsten, Malcolm Bocking, Robert S.Nicoll Earth and Planetary Science Letters 529(2020)115875 !!!!!!!!!!!!!!! NB: 7,3 Mb editorial note: Having some pre-existing knowledge of organic petrology,palynology,geochemistry would be helpful
  23. Humans pushed cave bears to extinction, their DNA suggests Washington Post, By Ben Guarino, August 15 2019 https://www.washingtonpost.com/science/2019/08/15/humans-pushed-cave-bears-extinction-their-dna-suggests/ Gretzinger, J., Molak, M., Reiter, E., Pfrengle, S., Urban, C., Neukamm, J., Blant, M., Conard, N.J., Cupillard, C., Dimitrijević, V. and Drucker, D.G., 2019. Large-scale mitogenomic analysis of the phylogeography of the Late Pleistocene cave bear. Scientific reports, 9. (open access) https://www.nature.com/articles/s41598-019-47073-z
  24. What were the largest animals to survive the KT extinction?
  25. It seems to me that our feral horses should be considered "Native Wildlife" like any other. Why did horses in North America go extinct?
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