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28 entries under expression topic. ×

14
Paleogene genus extinction(extinction, period, geochronology, paleogene)
7
eocene extinction(extinction, period, geochronology)
6
Cretaceous-Paleogene extinction event(geohistory, event, extinction)
6
Paleogene species extinction(extinction, period, paleogene)
6
cretaceous-paleogene boundary(extinction, period, geochronology)
6
oligocene extinction(extinction, period, geochronology)
4
Oligocene genus extinction(extinction, period, geochronology)
3
Chattian extinction(extinction, period, geochronology)
3
Eocene genus extinction(extinction, period, geochronology)
3
Rupelian extinction(extinction, period, geochronology)
2
Bartonian extinction(extinction, period, geochronology)
2
Boltysh crater(geology, crater, paleogene)
2
Chicxulub crater(geology, crater, paleogene)
2
Chota Formation(geohistory, formation, paleogene)
2
Denver Formation(geohistory, formation, paleogene)
2
Ferris Formation(geohistory, formation, paleogene)
2
Fort Union Formation(geohistory, formation, paleogene)
2
Guaduas Formation(geohistory, formation, paleogene)
2
Hell Creek Formation(geohistory, formation, paleogene)
2
Lopez de Bertodano Formation(geohistory, formation, paleogene)
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For more, visit Paleocene_extinction on Power Thesaurus
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APASmart Define. (1970). paleocene extinction thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/paleocene_extinction/thesaurus/related
ChicagoSmart Define. 1970. "paleocene extinction thesaurus" https://smartdefine.org/paleocene_extinction/thesaurus/related (accessed September 29, 2026).
HarvardSmart Define 1970, paleocene extinction thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/paleocene_extinction/thesaurus/related>.
MLASmart Define. "paleocene extinction thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/paleocene_extinction/thesaurus/related>