170 entries under noun topic. ×

3
Certhioidea(creature, appearance, eocene, geogistory)
3
Cetacea(creature, geohistory, ypresian)
3
Chaetopleura(creature, appearance, eocene, geogistory)
3
Chamaesipho(creature, appearance, eocene, geogistory)
3
Chameleon(creature, geohistory, paleocene)
3
Charadriiformes(creature, geohistory, lutetian)
3
Cheloniidae(creature, geohistory, paleocene)
3
Cibicides(creature, geohistory, paleocene)
3
Cingulata(creature, geohistory, paleocene)
3
Clavulina(creature, geohistory, paleocene)
3
Colpophyllia(creature, appearance, eocene, geogistory)
3
Colubridae(creature, appearance, eocene, geogistory)
3
Corallus(creature, geohistory, paleocene)
3
Corydoras(creature, geohistory, paleocene)
3
Cottidae(creature, appearance, eocene, geogistory)
3
Crocodile(creature, geohistory, ypresian)
3
Crocodylidae(creature, geohistory, ypresian)
3
Cryptobranchus(creature, geohistory, paleocene)
3
Cucurbitaceae(creature, geohistory, paleocene)
3
Curassow(creature, appearance, eocene, geogistory)
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APASmart Define. (1970). extant eocene first appearance thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/extant_eocene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "extant eocene first appearance thesaurus" https://smartdefine.org/extant_eocene_first_appearance/thesaurus/related (accessed October 1, 2026).
HarvardSmart Define 1970, extant eocene first appearance thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/related>.
MLASmart Define. "extant eocene first appearance thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/related>