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geological history of earth(expression, event, extinction)
For more, visit Extinction_event on Power Thesaurus
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APASmart Define. (1970). extinction event thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/extinction_event/thesaurus/broader
ChicagoSmart Define. 1970. "extinction event thesaurus" https://smartdefine.org/extinction_event/thesaurus/broader (accessed September 29, 2026).
HarvardSmart Define 1970, extinction event thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/extinction_event/thesaurus/broader>.
MLASmart Define. "extinction event thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/extinction_event/thesaurus/broader>