User talk:2605:A000:C800:3E00:F43F:A07:24F7:9527

May 2020
Hello, I'm Materialscientist. I noticed that you made a change to an article, Permian–Triassic extinction event, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Materialscientist (talk) 00:32, 13 May 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.