1
Gastornis(noun, creature, geohistory, paleocene)
1
Gavialidae(noun, creature, geohistory, eocene)
1
Glaucosoma(noun, creature, geohistory, eocene)
1
Gnomefish(noun, creature, geohistory, eocene)
1
Gopher(noun, creature, geohistory, eocene)
1
Halfbeak(noun, creature, geohistory, eocene)
1
Hanleya(noun, creature, geohistory, oligocene)
1
Hapalodectidae(noun, creature, geohistory, paleocene)
1
Hemipristis(noun, creature, geohistory, eocene)
1
Henricosborniidae(noun, creature, geohistory, paleocene)
1
Hoatzin(noun, creature, geohistory, eocene)
1
Holcorpa(noun, creature, geohistory, ypresian)
1
Holosteus(noun, creature, geohistory, ypresian)
1
Hyaenodontidae(noun, creature, geohistory, paleocene)
1
Hyracotherium(noun, creature, geohistory, ypresian)
1
Hystricognathi(noun, creature, geohistory, eocene)
1
Hystricomorpha(noun, creature, geohistory, eocene)
1
Inocelliidae(noun, creature, geohistory, eocene)
1
Interatheriidae(noun, creature, geohistory, paleocene)
1
Isotemnidae(noun, creature, geohistory, paleocene)
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APASmart Define. (1970). eocene first appearance thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/eocene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "eocene first appearance thesaurus" https://smartdefine.org/eocene_first_appearance/thesaurus/related (accessed September 29, 2026).
HarvardSmart Define 1970, eocene first appearance thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/eocene_first_appearance/thesaurus/related>.
MLASmart Define. "eocene first appearance thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/eocene_first_appearance/thesaurus/related>