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134 entries under geohistory topic. ×

2
Formiciinae(noun, eocene, extinction)
2
Fort Union Formation(expression, formation, paleogene)
2
Gobiomyidae(noun, eocene, extinction)
2
Groeberiidae(noun, extinction, oligocene)
2
Guaduas Formation(expression, formation, paleogene)
2
Hallirhoidae(noun, eocene, extinction)
2
Hapalodectidae(noun, eocene, extinction)
2
Haplohippus(noun, eocene, extinction)
2
Hell Creek Formation(expression, formation, paleogene)
2
Henricosborniidae(noun, eocene, extinction)
2
Hercoglossidae(noun, extinction, oligocene)
2
Hoanghoniinae(noun, eocene, extinction)
2
Holosteus(noun, extinction, oligocene)
2
Horusornithidae(noun, eocene, extinction)
2
Hyaenodontidae(noun, eocene, extinction)
2
Hyopsodontidae(noun, eocene, extinction)
2
Hyporhina(noun, extinction, oligocene)
2
Kogaionidae(noun, extinction, paleocene)
2
Lambdopsalidae(noun, eocene, extinction)
2
Leptauchenia(noun, extinction, oligocene)
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APASmart Define. (1970). paleogene extinction thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/paleogene_extinction/thesaurus/related
ChicagoSmart Define. 1970. "paleogene extinction thesaurus" https://smartdefine.org/paleogene_extinction/thesaurus/related (accessed October 1, 2026).
HarvardSmart Define 1970, paleogene extinction thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/paleogene_extinction/thesaurus/related>.
MLASmart Define. "paleogene extinction thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/paleogene_extinction/thesaurus/related>