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From: John Harshman <john.harshman@gmail.com>
Newsgroups: talk.origins
Subject: Re: The permian extinction 200 million years ago ice or fire?
Date: Tue, 5 Nov 2024 09:59:10 -0800
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On 11/5/24 9:39 AM, RonO wrote:
> https://www.sciencedaily.com/releases/2024/10/241028164257.htms
>
> These researchers think that the cold periods after the massive volcanic
> eruptions cause the mass extinction 200 million years ago. Massive
> amounts of carbon dioxide were expelled into the atmosphere, but they
> think that the huge amounts of sulfates caused rapid cooling more than
> once during these massive eruptions and that it was the cold that life
> on earth could not survive.
>
> Maybe the dinos were warm blooded even then and took over after the mass
> extinction event.
Nope. There were no dinosaurs in the Permian, and the first dinosaurs
appear more than 20 million years after the extinction. And even then
they were fairly rare members of the fauna they were part of, so
couldn't be considered to have taken over.