187 entries under geohistory topic. ×

1
eocene first appearance(noun, creature, eocene, priabonian)
1
lutetian first appearance(noun, creature, eocene, priabonian)
1
ypresian first appearance(noun, creature, eocene, priabonian)
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extant oligocene first appearance(noun, creature, eocene)
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extant paleocene first appearance(noun, creature, eocene)
0
extant rupelian first appearance(noun, animal, appearance)
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priabonian first appearance(noun, creature, eocene)
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APASmart Define. (2016). loon thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/loon/thesaurus/related
ChicagoSmart Define. 2016. "loon thesaurus" https://smartdefine.org/loon/thesaurus/related (accessed October 1, 2026).
HarvardSmart Define 2016, loon thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/loon/thesaurus/related>.
MLASmart Define. "loon thesaurus" 29 February 2016. Web. 1 October 2026. <https://smartdefine.org/loon/thesaurus/related>