150 entries under geohistory topic. ×

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Euarchontoglires(noun, creature, paleocene)
3
Euglenid(noun, creature, ypresian)
3
Even-toed ungulate(expression, creature, ypresian)
3
Extant Thanetian first appearance(expression, appearance, paleocene)
3
Fabaceae(noun, creature, paleocene)
3
Falconidae(noun, creature, ypresian)
3
Fir(noun, creature, ypresian)
3
Flatfish(noun, creature, paleocene)
3
Frigatebird(noun, creature, ypresian)
3
Fungus-growing ants(expression, creature, paleocene)
3
Galliformes(noun, creature, paleocene)
3
Gemmula(noun, creature, paleocene)
3
Ginkgo biloba(expression, creature, ypresian)
3
Glires(noun, creature, paleocene)
3
Glossanodon(noun, creature, ypresian)
3
Gnathophis(noun, creature, paleocene)
3
Golden mole(expression, creature, lutetian)
3
Handfish(noun, creature, lutetian)
3
Haplorhini(noun, creature, paleocene)
3
Heron(noun, creature, paleocene)
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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>