Synonyms|0Antonyms|0|Broader|1Narrower|69Related|257
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Numidotheriidae(noun, animal, geohistory, appearance)
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Obdurodon(noun, animal, geohistory, appearance)
2
Oldfieldthomasiidae(noun, animal, geohistory, appearance)
2
Omomyidae(noun, animal, geohistory, appearance)
2
Oxyaena(noun, animal, geohistory, appearance)
2
Palaeonictis(noun, animal, geohistory, appearance)
2
Pantodonta(noun, animal, geohistory, appearance)
2
Periptychidae(noun, animal, geohistory, appearance)
2
Phenacodontidae(noun, animal, geohistory, appearance)
2
Plesiadapidae(noun, animal, geohistory, appearance)
2
Plesiadapiformes(noun, animal, geohistory, appearance)
2
Plesiadapoidea(noun, animal, geohistory, appearance)
2
Pristichampsidae(noun, animal, geohistory, appearance)
2
Prolimnocyon(noun, animal, geohistory, appearance)
2
Pyrotheria(noun, animal, geohistory, appearance)
2
Sebecidae(noun, animal, geohistory, appearance)
2
Sophiornithidae(noun, animal, geohistory, appearance)
2
Sparassodonta(noun, animal, geohistory, appearance)
2
Sveltia(noun, animal, geohistory, appearance)
2
Tillodontia(noun, animal, geohistory, appearance)
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APASmart Define. (1970). paleocene first appearance thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/paleocene_first_appearance/thesaurus/narrower
ChicagoSmart Define. 1970. "paleocene first appearance thesaurus" https://smartdefine.org/paleocene_first_appearance/thesaurus/narrower (accessed September 28, 2026).
HarvardSmart Define 1970, paleocene first appearance thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/paleocene_first_appearance/thesaurus/narrower>.
MLASmart Define. "paleocene first appearance thesaurus" 1 January 1970. Web. 28 September 2026. <https://smartdefine.org/paleocene_first_appearance/thesaurus/narrower>