"पृथ्वी पर जीवन के अस्तित्व का इतिहास": अवतरणों में अंतर

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पंक्ति 166:
| archive-date = 9 सितंबर 2014
| url-status = dead
}}</ref> Opinion is divided on whether it increased or decreased biodiversity or the rate of evolution.<ref>{{Cite web |url=http://researchpages.net/media/resources/2007/06/21/richtimhywelfinal.pdf |title=संग्रहीत प्रति |access-date=18 सितंबर 2014 |archive-url=https://web.archive.org/web/20080910213718/http://researchpages.net/media/resources/2007/06/21/richtimhywelfinal.pdf |archive-date=10 सितंबर 2008 |url-status=livedead }}</ref><ref>{{cite journal
| author = Corsetti, F.A.
| author2 = Awramik, S.M.; Pierce, D.