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2 entries under extinction topic. ×

2
Eumorphocorystes(noun, animal, geohistory)
2
Proplatyarthrus(noun, animal, geohistory)
For more, visit Oligocene_genus_extinction on Power Thesaurus
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APASmart Define. (1970). oligocene genus extinction thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/oligocene_genus_extinction/thesaurus/narrower
ChicagoSmart Define. 1970. "oligocene genus extinction thesaurus" https://smartdefine.org/oligocene_genus_extinction/thesaurus/narrower (accessed September 30, 2026).
HarvardSmart Define 1970, oligocene genus extinction thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/oligocene_genus_extinction/thesaurus/narrower>.
MLASmart Define. "oligocene genus extinction thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/oligocene_genus_extinction/thesaurus/narrower>