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257 entries under geohistory topic. ×

2
Diamantomyidae(noun, creature, eocene)
2
Dichobunidae(noun, creature, eocene)
2
Diplocynodontinae(noun, creature, eocene)
2
Dissacus(noun, creature, danian)
2
Dolichoderus vectensis(expression, creature, eocene)
2
Dromornithidae(noun, creature, oligocene)
2
Echinopedinidae(noun, creature, eocene)
2
Ecphora(noun, creature, eocene)
2
Ekgmowechashala(noun, creature, oligocene)
2
Enoplosus armatus(expression, creature, paleocene)
2
Entelodont(noun, creature, eocene)
2
Eomyidae(noun, creature, eocene)
2
Eosimiidae(noun, creature, eocene)
2
Epoicotheriidae(noun, creature, eocene)
2
Eutypomyidae(noun, creature, eocene)
2
Florentiamyidae(noun, creature, eocene)
2
Florissantia(noun, creature, eocene)
2
Formiciinae(noun, creature, eocene)
2
Fungus-growing ants(expression, creature, paleocene)
2
Galecyon(noun, creature, eocene)
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APASmart Define. (1970). paleocene first appearance thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/paleocene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "paleocene first appearance thesaurus" https://smartdefine.org/paleocene_first_appearance/thesaurus/related (accessed October 2, 2026).
HarvardSmart Define 1970, paleocene first appearance thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/paleocene_first_appearance/thesaurus/related>.
MLASmart Define. "paleocene first appearance thesaurus" 1 January 1970. Web. 2 October 2026. <https://smartdefine.org/paleocene_first_appearance/thesaurus/related>