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115 entries under geohistory topic. ×

1
Horusornithidae(noun, animal, appearance)
1
Hyaenodon(noun, animal, appearance)
1
Hypertragulidae(noun, animal, appearance)
1
Hypertragulus(noun, animal, appearance)
1
Hyporhina(noun, animal, appearance)
1
Hyracodontidae(noun, animal, appearance)
1
Indricotheriinae(noun, animal, appearance)
1
Ischnochiton(noun, animal, appearance)
1
Leontiniidae(noun, animal, appearance)
1
Leptomerycinae(noun, animal, appearance)
1
Leptomeryx(noun, animal, appearance)
1
Limnocyon(noun, animal, appearance)
1
Lobocarcinus(noun, animal, appearance)
1
Macginitiea(noun, animal, appearance)
1
Machaeroides(noun, animal, appearance)
1
Macraucheniidae(noun, animal, appearance)
1
Merycoidodontoidea(noun, animal, appearance)
1
Mesonyx(noun, animal, appearance)
1
Mesotheriidae(noun, animal, appearance)
1
Miohippus(noun, animal, appearance)
For more, visit Eocene_first_appearance on Power Thesaurus
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APASmart Define. (1970). eocene first appearance thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/eocene_first_appearance/thesaurus/narrower
ChicagoSmart Define. 1970. "eocene first appearance thesaurus" https://smartdefine.org/eocene_first_appearance/thesaurus/narrower (accessed October 1, 2026).
HarvardSmart Define 1970, eocene first appearance thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/eocene_first_appearance/thesaurus/narrower>.
MLASmart Define. "eocene first appearance thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/eocene_first_appearance/thesaurus/narrower>