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

146 entries under extinction topic. ×

2
Compsemys(noun, geohistory, fauna)
2
Condylarth(noun, geohistory, paleocene)
2
Cormocyon(noun, geohistory, oligocene)
2
Coryphodontidae(noun, geohistory, eocene)
2
Cymatoceras(noun, geohistory, oligocene)
2
Cymatoceratidae(noun, geohistory, oligocene)
2
Deltatheroida(noun, geohistory, paleocene)
2
Dinocerata(noun, geohistory, eocene)
2
Dinopanorpidae(noun, geohistory, eocene)
2
Dyrosauridae(noun, geohistory, eocene)
2
Echinopedinidae(noun, geohistory, eocene)
2
Eosimiidae(noun, geohistory, oligocene)
2
Epihippus(noun, geohistory, eocene)
2
Epoicotheriidae(noun, geohistory, eocene)
2
Escavadodontidae(noun, geohistory, paleocene)
2
Essonodon(noun, geohistory, fauna)
2
Etyiidae(noun, geohistory, paleocene)
2
Eucosmodontidae(noun, geohistory, eocene)
2
Eurymylidae(noun, geohistory, eocene)
2
Florentiamyidae(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>