1
Barn-owl(noun, animal, geohistory, appearance)
1
Barracuda(noun, animal, geohistory, appearance)
1
Bathyclupea(noun, animal, geohistory, appearance)
1
Bathyclupeidae(noun, animal, geohistory, appearance)
1
Bathygadus(noun, animal, geohistory, appearance)
1
Bear(noun, animal, geohistory, appearance)
1
Bipedidae(noun, animal, geohistory, appearance)
1
Bitectiporidae(noun, animal, geohistory, appearance)
1
Bolma(noun, animal, geohistory, appearance)
1
Brachionichthys(noun, animal, geohistory, appearance)
1
Branchipodidae(noun, animal, geohistory, appearance)
1
Bucerotiformes(noun, animal, geohistory, appearance)
1
Bumblebee(noun, animal, geohistory, appearance)
1
Cactus(noun, animal, geohistory, appearance)
1
Cane rat(expression, animal, geohistory, appearance)
1
Canidae(noun, animal, geohistory, appearance)
1
Caproidae(noun, animal, geohistory, appearance)
1
Caranx(noun, animal, geohistory, appearance)
1
Cassidulina(noun, animal, geohistory, appearance)
1
Castoridae(noun, animal, geohistory, appearance)
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APASmart Define. (1970). extant eocene first appearance thesaurus. Retrieved September 27, 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 27, 2026).
HarvardSmart Define 1970, extant eocene first appearance thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/narrower>.
MLASmart Define. "extant eocene first appearance thesaurus" 1 January 1970. Web. 27 September 2026. <https://smartdefine.org/extant_eocene_first_appearance/thesaurus/narrower>