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40 entries under expression topic. ×

3
Eocene genus extinction(geohistory, extinction, period, genus)
3
Eocene life(geohistory, life, geochronology)
3
Oligocene genus extinction(geohistory, extinction, period, genus)
3
Oligocene life(geohistory, life, geochronology)
3
Paleocene genus extinction(geohistory, extinction, period, genus)
3
Paleocene life(geohistory, life, geochronology)
3
Paleogene animal(geohistory, fauna, paleogene)
3
Paleogene first appearance(geohistory, appearance, paleogene)
3
Paleogene fossil record(geohistory, paleogene, fossil)
3
Paleogene fungi(geohistory, fungi, paleogene)
3
Paleogene life of Asia(life, asia, geochronology)
3
Paleogene life of North America(america, life, geochronology)
3
Paleogene life of South America(america, life, geochronology)
3
Paleogene plant(geohistory, plant, paleogene)
2
Alvarez hypothesis(geology, hypothesis, paleogene)
2
Bartonian extinction(extinction, period, geochronology)
2
Boltysh crater(geology, crater, paleogene)
2
Chattian extinction(extinction, period, geochronology)
2
Chicxulub crater(geology, crater, paleogene)
2
Chicxulub impactor(boundary, paleogene, impactor)
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APASmart Define. (1970). paleogene extinction thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/paleogene_extinction/thesaurus/related
ChicagoSmart Define. 1970. "paleogene extinction thesaurus" https://smartdefine.org/paleogene_extinction/thesaurus/related (accessed September 26, 2026).
HarvardSmart Define 1970, paleogene extinction thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/paleogene_extinction/thesaurus/related>.
MLASmart Define. "paleogene extinction thesaurus" 1 January 1970. Web. 26 September 2026. <https://smartdefine.org/paleogene_extinction/thesaurus/related>