Synonyms|1Antonyms|0|Broader|3Narrower|25Related|147

146 entries under extinction topic. ×

2
Torosaurus(noun, geohistory, fauna)
2
Triisodontidae(noun, geohistory, eocene)
2
Uintatheriidae(noun, geohistory, eocene)
2
Viverravidae(noun, geohistory, eocene)
2
Xenungulata(noun, geohistory, eocene)
2
Ypresian extinction(expression, period, geochronology)
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APASmart Define. (1970). cretaceous-paleogene boundary thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related
ChicagoSmart Define. 1970. "cretaceous-paleogene boundary thesaurus" https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related (accessed October 1, 2026).
HarvardSmart Define 1970, cretaceous-paleogene boundary thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related>.
MLASmart Define. "cretaceous-paleogene boundary thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related>