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134 entries under geohistory topic. ×

2
Palaeochiropterygidae(noun, eocene, extinction)
2
Palaeolagus(noun, extinction, oligocene)
2
Palaeoryctidae(noun, extinction, paleocene)
2
Palaeotheriidae(noun, extinction, oligocene)
2
Palimphyes(noun, extinction, oligocene)
2
Pantolestidae(noun, extinction, oligocene)
2
Parapithecidae(noun, extinction, oligocene)
2
Parapithecoidea(noun, extinction, oligocene)
2
Peltosaurus(noun, extinction, oligocene)
2
Periptychidae(noun, extinction, paleocene)
2
Phenacodontidae(noun, eocene, extinction)
2
Plesiadapiformes(noun, eocene, extinction)
2
Priscagamidae(noun, eocene, extinction)
2
Pristichampsidae(noun, eocene, extinction)
2
Prorastomidae(noun, eocene, extinction)
2
Proteopithecidae(noun, extinction, oligocene)
2
Protocetidae(noun, eocene, extinction)
2
Pteridospermatophyta(noun, eocene, extinction)
2
Ptilodontidae(noun, extinction, paleocene)
2
Ptilodontoidea(noun, eocene, extinction)
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APASmart Define. (1970). paleogene extinction thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/paleogene_extinction/thesaurus/related
ChicagoSmart Define. 1970. "paleogene extinction thesaurus" https://smartdefine.org/paleogene_extinction/thesaurus/related (accessed October 2, 2026).
HarvardSmart Define 1970, paleogene extinction thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/paleogene_extinction/thesaurus/related>.
MLASmart Define. "paleogene extinction thesaurus" 1 January 1970. Web. 2 October 2026. <https://smartdefine.org/paleogene_extinction/thesaurus/related>