File talk:Biostratigraphie usgs.png
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Be careful with sources and copyrights
[編輯]This is not the image from the attributed source, but a translated one. Be careful with this, because translations do not automatically inherit the copyright of the original text or image! So it's not clear, if the translation is also a USGS PD, plus the the source attribution is simply wrong. 77.23.248.5 11:30, 7 June 2023 (UTC)