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201 entries under noun topic. ×

4
Lazarussuchus(creature, appearance, paleocene)
4
Leontiniidae(creature, appearance, eocene)
4
Lepidopleurus(creature, appearance, paleocene)
4
Leptomerycinae(creature, appearance, eocene)
4
Leptomeryx(creature, appearance, eocene)
4
Limnocyon(creature, appearance, eocene)
4
Litopterna(creature, appearance, paleocene)
4
Lobocarcinus(creature, appearance, eocene)
4
Macginitiea(creature, appearance, eocene)
4
Machaeroides(creature, appearance, eocene)
4
Macraucheniidae(creature, appearance, eocene)
4
Mammacyon(creature, appearance, oligocene)
4
Merycochoerus(creature, appearance, oligocene)
4
Merycoidodontoidea(creature, appearance, eocene)
4
Mesonychid(creature, appearance, paleocene)
4
Mesonychidae(creature, appearance, paleocene)
4
Mesonyx(creature, appearance, eocene)
4
Mesotheriidae(creature, appearance, eocene)
4
Miacidae(creature, appearance, paleocene)
4
Miohippus(creature, appearance, eocene)
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APASmart Define. (1970). paleogene first appearance thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/paleogene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "paleogene first appearance thesaurus" https://smartdefine.org/paleogene_first_appearance/thesaurus/related (accessed October 1, 2026).
HarvardSmart Define 1970, paleogene first appearance thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/paleogene_first_appearance/thesaurus/related>.
MLASmart Define. "paleogene first appearance thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/paleogene_first_appearance/thesaurus/related>