Oxytropidoceras Posted December 15, 2018 Share Posted December 15, 2018 (edited) Megalodon may have been killed off by Supernova radiation, Hannah Osborne, Newsweek, December 13, 2018 https://www.newsweek.com/megalodon-extinct-shark-supernova-cosmic-ray-cancer-mutations-1256980 Massive supernova explosion may have wiped out giant prehistoric sharks, scientists say. Megalodon may have been among creatures driven to extinction after cosmic particles drove up cancer rates, new study claims The Independent, Josh Gabbatiss, December 2018 https://www.independent.co.uk/news/science/supernova-stars-explosion-giant-sharks-prehistoric-megalodon-extinction-science-a8679636.html The paper is: Adrian L. Melott, Franciole Marinho, and Laura Paulucci 2018, Hypothesis: Muon Radiation Dose and Marine Megafaunal Extinction at the End-Pliocene Supernova. Astrobiology, Published Online, November 27, 2018 https://doi.org/10.1089/ast.2018.1902 and at Muon Radiation Dose and Marine Megafaunal Extinction at the end-Pliocene Supernova Adrian L. Melott (Kansas), Franciole Marinho, Laura Paulucci (Submitted on 26 Dec 2017 (v1), last revised 17 Oct 2018 (this version, v2)) https://arxiv.org/pdf/1712.09367.pdf https://arxiv.org/abs/1712.09367 Yours, Paul H. Edited December 16, 2018 by Oxytropidoceras Added link to PDF version of paper 4 Link to comment Share on other sites More sharing options...
Ramon Posted December 31, 2018 Share Posted December 31, 2018 That’s an interesting theory, however that wouldn’t explain why other big animals like mammoths, and other terrestrial megafauna from all over the world didn’t go extinct as well. "Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier Link to comment Share on other sites More sharing options...
DeepTimeIsotopes Posted December 31, 2018 Share Posted December 31, 2018 4 hours ago, Ramon said: That’s an interesting theory, however that wouldn’t explain why other big animals like mammoths, and other terrestrial megafauna from all over the world didn’t go extinct as well. I thought they had gone extinct because their food source was diminishing from competition by Livyatan and Great Whites? Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by? Link to comment Share on other sites More sharing options...
DeepTimeIsotopes Posted December 31, 2018 Share Posted December 31, 2018 Here’s a video from PBS Eons about this subject if anyone is interested. 2 Each dot is 50,000,000 years: Hadean............Archean..............................Proterozoic.......................................Phanerozoic........... Paleo......Meso....Ceno.. Ꞓ.OSD.C.P.Tr.J.K..Pg.NgQ< You are here Doesn't time just fly by? Link to comment Share on other sites More sharing options...
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