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201 entries under noun topic. ×

4
Echinopedinidae(creature, appearance, eocene)
4
Ecphora(creature, appearance, eocene)
4
Ekgmowechashala(creature, appearance, oligocene)
4
Entelodont(creature, appearance, eocene)
4
Eomyidae(creature, appearance, eocene)
4
Eosimiidae(creature, appearance, eocene)
4
Epoicotheriidae(creature, appearance, eocene)
4
Escavadodontidae(creature, appearance, paleocene)
4
Eurymylidae(creature, appearance, paleocene)
4
Eutypomyidae(creature, appearance, eocene)
4
Euzaphlegidae(creature, appearance, paleocene)
4
Fabiania(creature, appearance, paleocene)
4
Ficopsis(creature, appearance, paleocene)
4
Florentiamyidae(creature, appearance, eocene)
4
Florissantia(creature, appearance, eocene)
4
Formiciinae(creature, appearance, eocene)
4
Galecyon(creature, appearance, eocene)
4
Gastornis(creature, appearance, paleocene)
4
Gigantostrea(creature, appearance, eocene)
4
Gobiomyidae(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>