Ordovician-Silurian extinction events
Extinction eventsOrdovician periodSilurian period
Culprit for Mass Extinction 445 Million Years Ago? Global Warming - The New York Timeshttps://www.nytimes.com/2020/06/10/science/global-warming-ordovician-extinction.html
Articles in the New York TimesCarbon dioxideGlaciers, icebergs and sea iceLate Ordovician mass extinction (LOME)Mercury (chemical element)MolybdenumOrdovician periodOxygenUraniumVolcanic eruptions
Ordovician - Wikipediahttps://en.wikipedia.org/wiki/Ordovician
Ordovician period
The Anthropocene epoch: have we entered a new phase of planetary history? | Environment | The Guardianhttps://www.theguardian.com/environment/2019/may/30/anthropocene-epoch-have-we-entered-a-new-phase-of-planetary-history
Anthropocene epochArticles in the GuardianBill RuddimanCretaceousHoloceneInterContinental Shanghai WonderlandInternational Commission on Stratigraphy (ICS)International Union of Geological Sciences (IUGS)Jan ZalasiewiczJedediah PurdyLeicester UniversityMax Planck Institute for ChemistryOrdovician periodPaul CrutzenPeter SloterdijkPhilip GibbardPliocenePrecambrian eonQuaternaryStanley Finney

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Ordovician period
Paleozoic era