58 entries under appearance topic. ×

3
Curassow(noun, creature, eocene, geogistory)
3
Cyprinodontiformes(noun, creature, eocene, geogistory)
3
Delphinoidea(noun, creature, eocene, geogistory)
3
Elachorbis(noun, creature, eocene, geogistory)
3
Extant Thanetian first appearance(expression, geohistory, paleocene)
3
Gadidae(noun, creature, eocene, geogistory)
3
Helix(noun, creature, eocene, geogistory)
3
Honey bee(expression, creature, eocene, geogistory)
3
Ictalurus(noun, creature, eocene, geogistory)
3
Inversiulidae(noun, creature, eocene, geogistory)
3
John Dory(expression, creature, eocene, geogistory)
3
Megabat(noun, creature, eocene, geogistory)
3
Mercenaria(noun, creature, eocene, geogistory)
3
Metacarcinus(noun, creature, eocene, geogistory)
3
Mongoose(noun, creature, eocene, geogistory)
3
Muscicapoidea(noun, creature, eocene, geogistory)
3
Nephrops(noun, creature, eocene, geogistory)
3
Notoplax(noun, creature, eocene, geogistory)
3
Old World monkey(expression, creature, eocene, geogistory)
3
Oregonia(noun, creature, eocene, geogistory)
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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>