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160 entries under paleocene topic. ×

1
Phenacodontidae(noun, creature, geohistory)
1
Plesiadapidae(noun, creature, geohistory)
1
Plesiadapiformes(noun, creature, geohistory)
1
Plesiadapoidea(noun, creature, geohistory)
1
Pristichampsidae(noun, creature, geohistory)
1
Prolimnocyon(noun, creature, geohistory)
1
Pyrotheria(noun, creature, geohistory)
1
Sebecidae(noun, creature, geohistory)
1
Sophiornithidae(noun, creature, geohistory)
1
Sparassodonta(noun, creature, geohistory)
1
Sveltia(noun, creature, geohistory)
1
Tillodontia(noun, creature, geohistory)
1
Toxodonta(noun, creature, geohistory)
1
Triisodontidae(noun, creature, geohistory)
1
Tytthaena(noun, creature, geohistory)
1
Uintatheriidae(noun, creature, geohistory)
1
Umayodus(noun, creature, geohistory)
1
Velates(noun, creature, geohistory)
1
Viverravidae(noun, creature, geohistory)
1
Xenungulata(noun, creature, geohistory)
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APASmart Define. (1970). extant paleogene first appearance thesaurus. Retrieved October 1, 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 October 1, 2026).
HarvardSmart Define 1970, extant paleogene first appearance thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/extant_paleogene_first_appearance/thesaurus/related>.
MLASmart Define. "extant paleogene first appearance thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/extant_paleogene_first_appearance/thesaurus/related>