Ahlersb

Welcome to Wikimedia Commons, Ahlersb!

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-- Wikimedia Commons Welcome (talk) 00:24, 27 January 2016 (UTC)

File:Oxygen During the Boring Billion.png

You uploaded this image in 2016. Where exactly does it state on the source article that this image is CC-BY? Dunkleosteus77 (talk) 18:37, 4 April 2020 (UTC)

File:Timeline showing the Boring Billion.png

Same as my previous question. You give author credit, but what website did you originally download this from? How do you know the licensing of this image? Dunkleosteus77 (talk) 18:39, 4 April 2020 (UTC)