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539 entries under creature topic. ×

2
Afrotheria(noun, geohistory, paleocene)
2
Albatross(noun, geohistory, oligocene)
2
Aldrovanda(noun, geohistory, paleocene)
2
Alectis(noun, eocene, geogistory)
2
Alligator(noun, geohistory, oligocene)
2
Alligatorinae(noun, geohistory, paleocene)
2
Alosa(noun, eocene, geogistory)
2
Ameiurus(noun, geohistory, oligocene)
2
Amphipoda(noun, eocene, geogistory)
2
Amphistegina(noun, eocene, geogistory)
2
Ampullinopsis(noun, geohistory, paleocene)
2
Andrias(noun, geohistory, paleocene)
2
Anguillidae(noun, geohistory, paleocene)
2
Anomalure(noun, eocene, geogistory)
2
Anomaluromorpha(noun, eocene, geogistory)
2
Anseranatidae(noun, eocene, geogistory)
2
Aplodontiidae(noun, geohistory, oligocene)
2
Apodiformes(noun, geohistory, paleocene)
2
Apogon(noun, eocene, geogistory)
2
Arachnopusiidae(noun, eocene, geogistory)
For more, visit Extant_paleogene_first_appearance on Power Thesaurus
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APASmart Define. (1970). extant paleogene first appearance thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/extant_paleogene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "extant paleogene first appearance thesaurus" https://smartdefine.org/extant_paleogene_first_appearance/thesaurus/related (accessed September 30, 2026).
HarvardSmart Define 1970, extant paleogene first appearance thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/extant_paleogene_first_appearance/thesaurus/related>.
MLASmart Define. "extant paleogene first appearance thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/extant_paleogene_first_appearance/thesaurus/related>