1
Castorimorpha(noun, animal, geohistory, appearance)
1
Catarrhini(noun, animal, geohistory, appearance)
1
Cathartiformes(noun, animal, geohistory, appearance)
1
Celleporidae(noun, animal, geohistory, appearance)
1
Centropomidae(noun, animal, geohistory, appearance)
1
Centropomus(noun, animal, geohistory, appearance)
1
Cheiragonidae(noun, animal, geohistory, appearance)
1
Cladonychiidae(noun, animal, geohistory, appearance)
1
Clupeidae(noun, animal, geohistory, appearance)
1
Clypeaster(noun, animal, geohistory, appearance)
1
Coconut(noun, animal, geohistory, appearance)
1
Coelopleurus(noun, animal, geohistory, appearance)
1
Colugo(noun, animal, geohistory, appearance)
1
Cone snail(expression, animal, geohistory, appearance)
1
Conger(noun, animal, geohistory, appearance)
1
Conus(noun, animal, geohistory, appearance)
1
Coraciiformes(noun, animal, geohistory, appearance)
1
Corvoidea(noun, animal, geohistory, appearance)
1
Cuckoo(noun, animal, geohistory, appearance)
1
Cuspidaria(noun, animal, geohistory, appearance)
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APASmart Define. (1970). extant eocene first appearance thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/extant_eocene_first_appearance/thesaurus/narrower
ChicagoSmart Define. 1970. "extant eocene first appearance thesaurus" https://smartdefine.org/extant_eocene_first_appearance/thesaurus/narrower (accessed September 28, 2026).
HarvardSmart Define 1970, extant eocene first appearance thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/narrower>.
MLASmart Define. "extant eocene first appearance thesaurus" 1 January 1970. Web. 28 September 2026. <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/narrower>