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Oxytropidoceras posted a topic in Fossil NewsIridium in undersea crater confirms asteroid wiped out the dinosaurs Hamish Johnston, Physics World, February 24, 2021, https://physicsworld.com/a/iridium-in-undersea-crater-confirms-asteroid-wiped-out-the-dinosaurs/ Tha paper is: Goderis, S., Sato, H., Ferrière, L, et al. 2021, Globally distributed iridium layer preserved within the Chicxulub impact structure Science Advances 24 Feb 2021: Vol. 7, no. 9, eabe3647 https://advances.sciencemag.org/content/7/9/eabe3647 There are arguments that seismic waves from the Chicxulub imp
Oxytropidoceras posted a topic in Fossil NewsAstronomers: A comet fragment, not an asteroid, killed off the dinosaurs Jupiter's gravity pushed comet toward Sun; comet was ripped apart by tidal forces. Jennifer Ouellette, ArsTechnica, February 15, 2021 https://arstechnica.com/science/2021/02/astronomers-a-comet-fragment-not-an-asteroid-killed-off-the-dinosaurs/ The open access paper is: Siraj, A. and Loeb, A., Breakup of a Long-Period Comet as the Origin of the Dinosaur Extinction. Scientific Reports volume 11, Article number: 3803 (2021) https://www.nature.com/articles/s41598-021-8232
Oxytropidoceras posted a topic in Fossil NewsAncient human, giant sloth remains found in world's biggest flooded cave. Bones of Ice Age animals, including elephants and bears, found in Sac Actun system in Mexico. Thomson Reuters Posted: Feb 20, 2018 http://www.cbc.ca/news/technology/mexico-flooded-cave-1.4543416 https://www.gob.mx/cultura/prensa/dan-a-conocer-hallazgos-en-el-sitio-arqueologico-sumergido-sac-actun Yours, Paul H.
Oxytropidoceras posted a topic in Fossil NewsAncient species of giant sloth discovered in Mexico Borneo Bulletin, August 18, 2017 https://borneobulletin.com.bn/ancient-species-giant-sloth-discovered-mexico/ Fossilized remains of a giant sloth unearthed in Mexico By Victoria Ritter, Gears of Biz, August 20, 2017 http://gearsofbiz.com/fossilized-remains-of-a-giant-sloth-unearthed-in-mexico/16015 Ancient Giant Sloth Fossil Found in Underwater Cave While cave diving in Mexico, explorers uncovered 10,000- year-old remains of a new sloth species, National Geographic http://news.nation