User talk:2.247.242.189

December 2021
Hello, I'm Donald Albury. I noticed that you added or changed content in an article, Cryogenian, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Please read this section of the Verifiability policy, Verifiability, which makes it clear that the burden of citing a reliable source for challenged material is on any editor who wants to add that material to an article. Donald Albury 15:44, 30 December 2021 (UTC)