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211 entries under creature topic. ×

4
Dinopanorpidae(noun, appearance, paleocene)
4
Diplocynodon(noun, appearance, paleocene)
4
Diplocynodontinae(noun, appearance, eocene)
4
Discoaster(noun, appearance, paleocene)
4
Dolichoderus vectensis(expression, appearance, eocene)
4
Dromornithidae(noun, appearance, oligocene)
4
Echinopedinidae(noun, appearance, eocene)
4
Ecphora(noun, appearance, eocene)
4
Ekgmowechashala(noun, appearance, oligocene)
4
Entelodont(noun, appearance, eocene)
4
Eomyidae(noun, appearance, eocene)
4
Eosimiidae(noun, appearance, eocene)
4
Epoicotheriidae(noun, appearance, eocene)
4
Escavadodontidae(noun, appearance, paleocene)
4
Eurymylidae(noun, appearance, paleocene)
4
Eutypomyidae(noun, appearance, eocene)
4
Euzaphlegidae(noun, appearance, paleocene)
4
Fabiania(noun, appearance, paleocene)
4
Ficopsis(noun, appearance, paleocene)
4
Florentiamyidae(noun, appearance, eocene)
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APASmart Define. (1970). paleogene first appearance thesaurus. Retrieved September 29, 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 September 29, 2026).
HarvardSmart Define 1970, paleogene first appearance thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/paleogene_first_appearance/thesaurus/related>.
MLASmart Define. "paleogene first appearance thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/paleogene_first_appearance/thesaurus/related>