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15 entries under geochronology topic. ×

11
Oligocene extinction(expression, geohistory, extinction, period, boundary)
10
Eocene extinction(expression, extinction, period)
6
Paleocene extinction(expression, extinction, period)
3
Eocene genus extinction(expression, extinction, period)
3
Oligocene genus extinction(expression, extinction, period)
3
Paleocene genus extinction(expression, extinction, period)
2
Bartonian extinction(expression, extinction, period)
2
Chattian extinction(expression, extinction, period)
2
Lutetian extinction(expression, extinction, period)
2
Paleocene species extinction(expression, extinction, period)
2
Priabonian extinction(expression, extinction, period)
2
Rupelian extinction(expression, extinction, period)
2
Selandian extinction(expression, extinction, period)
2
Thanetian extinction(expression, extinction, period)
2
Ypresian extinction(expression, extinction, period)
For more, visit Cretaceous-paleogene_boundary on Power Thesaurus
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APASmart Define. (1970). cretaceous-paleogene boundary thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related
ChicagoSmart Define. 1970. "cretaceous-paleogene boundary thesaurus" https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related (accessed October 2, 2026).
HarvardSmart Define 1970, cretaceous-paleogene boundary thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related>.
MLASmart Define. "cretaceous-paleogene boundary thesaurus" 1 January 1970. Web. 2 October 2026. <https://smartdefine.org/cretaceous-paleogene_boundary/thesaurus/related>