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

146 entries under extinction topic. ×

11
Oligocene extinction(expression, geohistory, period, boundary)
10
Eocene extinction(expression, period, geochronology)
6
Paleocene extinction(expression, period, geochronology)
6
Paleogene genus extinction(expression, period, paleogene)
5
Glyphocyphidae(noun, family, urchin)
5
Glyptosaurinae(noun, lizard, subfamily)
5
Paleogene species extinction(expression, period, paleogene)
5
Synechodontiformes(noun, order, shark)
3
Eocene genus extinction(expression, period, geochronology)
3
Oligocene genus extinction(expression, period, geochronology)
3
Paleocene genus extinction(expression, period, geochronology)
2
Adapidae(noun, geohistory, eocene)
2
Adapinae(noun, geohistory, eocene)
2
Adapisoriculidae(noun, geohistory, paleocene)
2
Afrotarsius(noun, geohistory, oligocene)
2
Alagomyidae(noun, geohistory, eocene)
2
Alamosaurus(noun, geohistory, fauna)
2
Ambulocetidae(noun, geohistory, eocene)
2
Anaptomorphinae(noun, geohistory, eocene)
2
Araripemydidae(noun, geohistory, paleocene)
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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>