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248 entries under creature topic. ×

2
Merycochoerus(noun, geohistory, oligocene)
2
Merycoidodontoidea(noun, geohistory, eocene)
2
Mesonyx(noun, geohistory, eocene)
2
Mesotheriidae(noun, geohistory, eocene)
2
Miohippus(noun, geohistory, eocene)
2
Miotylopus(noun, geohistory, oligocene)
2
Nanotragulus(noun, geohistory, eocene)
2
Neocynodesmus(noun, geohistory, oligocene)
2
Notharctidae(noun, geohistory, eocene)
2
Notharctinae(noun, geohistory, eocene)
2
Notohippidae(noun, geohistory, eocene)
2
Notostylopidae(noun, geohistory, eocene)
2
Octodontotherium(noun, geohistory, oligocene)
2
Oligopithecidae(noun, geohistory, eocene)
2
Orohippus(noun, geohistory, eocene)
2
Oromerycidae(noun, geohistory, eocene)
2
Orophodontidae(noun, geohistory, oligocene)
2
Pacific giant salamander(expression, geohistory, paleocene)
2
Pagrus(noun, geohistory, eocene)
2
Pakicetidae(noun, geohistory, eocene)
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APASmart Define. (1970). paleocene first appearance thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/paleocene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "paleocene first appearance thesaurus" https://smartdefine.org/paleocene_first_appearance/thesaurus/related (accessed October 1, 2026).
HarvardSmart Define 1970, paleocene first appearance thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/paleocene_first_appearance/thesaurus/related>.
MLASmart Define. "paleocene first appearance thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/paleocene_first_appearance/thesaurus/related>