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

146 entries under extinction topic. ×

2
Proteopithecidae(noun, geohistory, oligocene)
2
Protocetidae(noun, geohistory, eocene)
2
Pteridospermatophyta(noun, geohistory, eocene)
2
Ptilodontidae(noun, geohistory, paleocene)
2
Ptilodontoidea(noun, geohistory, eocene)
2
Pyrotheria(noun, geohistory, oligocene)
2
Quetzalcoatlus(noun, geohistory, fauna)
2
Raoellidae(noun, geohistory, eocene)
2
Remingtonocetidae(noun, geohistory, eocene)
2
Richardoestesia(noun, geohistory, fauna)
2
Rupelian extinction(expression, period, geochronology)
2
Sclerorhynchidae(noun, geohistory, eocene)
2
Selandian extinction(expression, period, geochronology)
2
Simimyidae(noun, geohistory, eocene)
2
Sophiornithidae(noun, geohistory, eocene)
2
Squatirhina(noun, geohistory, fauna)
2
Taeniolabididae(noun, geohistory, paleocene)
2
Taeniolabidoidea(noun, geohistory, paleocene)
2
Thanetian extinction(expression, period, geochronology)
2
Tillodontia(noun, geohistory, eocene)
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APASmart Define. (1970). cretaceous-paleogene boundary thesaurus. Retrieved October 2, 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 2, 2026).
HarvardSmart Define 1970, cretaceous-paleogene boundary thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related>.
MLASmart Define. "cretaceous-paleogene boundary thesaurus" 1 January 1970. Web. 2 October 2026. <https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related>