145 entries under expression topic. ×

4
Extant Lutetian first appearance(geohistory, eocene, period, lutetian)
4
Extant Oligocene first appearance(geohistory, appearance, period, oligocene)
4
Extant Paleocene first appearance(geohistory, appearance, period, paleocene)
4
Extant Ypresian first appearance(geohistory, eocene, period, ypresian)
4
Chattian first appearance(geohistory, period, oligocene)
4
Danian first appearance(geohistory, period, paleocene)
4
Extant Eocene first appearance(geohistory, appearance, period)
4
Rupelian first appearance(geohistory, period, oligocene)
4
Selandian first appearance(geohistory, period, paleocene)
4
Thanetian first appearance(geohistory, period, paleocene)
2
Geometer moth(creature, geohistory, eocene, priabonian)
2
Old World silverside(creature, geohistory, eocene, bartonian)
1
Andrias scheuchzeri(creature, geohistory, oligocene)
1
Anthidium exhumatum(creature, geohistory, priabonian)
1
Anthidium scudderi(creature, geohistory, priabonian)
1
Cane rat(creature, geohistory, eocene)
1
Cone snail(creature, geohistory, eocene)
1
Daggernose shark(creature, geohistory, eocene)
1
Electric ray(creature, geohistory, eocene)
1
False trevally(creature, geohistory, eocene)
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APASmart Define. (1970). eocene first appearance thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/eocene_first_appearance/thesaurus/related
ChicagoSmart Define. 1970. "eocene first appearance thesaurus" https://smartdefine.org/eocene_first_appearance/thesaurus/related (accessed September 27, 2026).
HarvardSmart Define 1970, eocene first appearance thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/eocene_first_appearance/thesaurus/related>.
MLASmart Define. "eocene first appearance thesaurus" 1 January 1970. Web. 27 September 2026. <https://smartdefine.org/eocene_first_appearance/thesaurus/related>