Synonyms|0Antonyms|0|Broader|1Narrower|34Related|436
2
Chattian first appearance(expression, geohistory, appearance, period)
2
Extant Oligocene first appearance(expression, geohistory, appearance, period)
2
Rupelian first appearance(expression, geohistory, appearance, period)
1
Aceratheriinae(noun, animal, geohistory, appearance)
1
Afossochiton(noun, animal, geohistory, appearance)
1
Ailuridae(noun, animal, geohistory, appearance)
1
Amphechinus(noun, animal, geohistory, appearance)
1
Andrias scheuchzeri(expression, animal, geohistory, appearance)
1
Borophaginae(noun, animal, geohistory, appearance)
1
Chubutherium(noun, animal, geohistory, appearance)
1
Dromornithidae(noun, animal, geohistory, appearance)
1
Ekgmowechashala(noun, animal, geohistory, appearance)
1
Hanleya(noun, animal, geohistory, appearance)
1
Kentriodontidae(noun, animal, geohistory, appearance)
1
Mammacyon(noun, animal, geohistory, appearance)
1
Merycochoerus(noun, animal, geohistory, appearance)
1
Miotylopus(noun, animal, geohistory, appearance)
1
Neocynodesmus(noun, animal, geohistory, appearance)
1
Octodontotherium(noun, animal, geohistory, appearance)
1
Orophodontidae(noun, animal, geohistory, appearance)
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APASmart Define. (1970). oligocene first appearance thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/oligocene_first_appearance/thesaurus/narrower
ChicagoSmart Define. 1970. "oligocene first appearance thesaurus" https://smartdefine.org/oligocene_first_appearance/thesaurus/narrower (accessed September 26, 2026).
HarvardSmart Define 1970, oligocene first appearance thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/oligocene_first_appearance/thesaurus/narrower>.
MLASmart Define. "oligocene first appearance thesaurus" 1 January 1970. Web. 26 September 2026. <https://smartdefine.org/oligocene_first_appearance/thesaurus/narrower>