3
Buccella(noun, creature, appearance, eocene, geogistory)
3
Budgerigar(noun, creature, geohistory, paleocene)
3
Buteo(noun, creature, appearance, eocene, geogistory)
3
Butterfly(noun, creature, geohistory, lutetian)
3
Caiman(noun, creature, geohistory, paleocene)
3
Callichthyidae(noun, creature, geohistory, paleocene)
3
Callochiton(noun, creature, appearance, eocene, geogistory)
3
Camelid(noun, creature, geohistory, lutetian)
3
Caniformia(noun, creature, geohistory, lutetian)
3
Caprimulgiformes(noun, creature, geohistory, paleocene)
3
Carnivora(noun, creature, geohistory, lutetian)
3
Carpilioidea(noun, creature, geohistory, paleocene)
3
Cassis(noun, creature, geohistory, paleocene)
3
Certhioidea(noun, creature, appearance, eocene, geogistory)
3
Cetacea(noun, creature, geohistory, ypresian)
3
Chaetopleura(noun, creature, appearance, eocene, geogistory)
3
Chamaesipho(noun, creature, appearance, eocene, geogistory)
3
Chameleon(noun, creature, geohistory, paleocene)
3
Charadriiformes(noun, creature, geohistory, lutetian)
3
Cheloniidae(noun, creature, geohistory, paleocene)
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APASmart Define. (1970). extant eocene first appearance thesaurus. Retrieved September 30, 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 September 30, 2026).
HarvardSmart Define 1970, extant eocene first appearance thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/related>.
MLASmart Define. "extant eocene first appearance thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/related>