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WikiPedia: Paratethys http://www.unil.ch/igp/page77388.html http://www.unil.ch/webdav/site/igp/shared/Research... http://www.searchanddiscovery.net/documents/abstra... https://web.archive.org/web/20120108021131/http://... https://web.archive.org/web/20120113060454/http://... https://www.sciencemag.org/news/2021/06/rise-and-f... https://commons.wikimedia.org/wiki/Category:Parate...