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11
cretaceous-paleogene boundary(expression, geohistory, extinction, period)
For more, visit Oligocene_extinction on Power Thesaurus
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APASmart Define. (1970). oligocene extinction thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/oligocene_extinction/thesaurus/related
ChicagoSmart Define. 1970. "oligocene extinction thesaurus" https://smartdefine.org/oligocene_extinction/thesaurus/related (accessed September 30, 2026).
HarvardSmart Define 1970, oligocene extinction thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/oligocene_extinction/thesaurus/related>.
MLASmart Define. "oligocene extinction thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/oligocene_extinction/thesaurus/related>