Re: The permian extinction 200 million years ago ice or fire?

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.
 Ron Okimoto
 

Minor quibble, it was 250 Mya.  The dinosaurs came toward the end of the Triassic (suvivors of the late Triassic extinction).  The heavy predators for most of the Triassic were Crocodilians.