56 entries under noun topic. ×

4
Gelasian(geology, history, age)
4
Gzhelian(geology, history, age)
4
Hauterivian(geology, history, age)
4
Hettangian(geology, history, age)
4
Induan(geology, history, age)
4
Kasimovian(geology, history, age)
4
Kimmeridgian(geology, history, age)
4
Ladinian(geology, history, age)
4
Langhian(geology, history, age)
4
Lutetian(geology, history, age)
4
Maastrichtian(geology, history, age)
4
Messinian(geology, history, age)
4
Moscovian(geology, history, age)
4
Norian(geology, history, age)
4
Olenekian(geology, history, age)
4
Oxfordian(geology, history, age)
4
Piacenzian(geology, history, age)
4
Pliensbachian(geology, history, age)
4
Priabonian(geology, history, age)
4
Rhaetian(geology, history, age)
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APASmart Define. (2015). geological age thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/geological_age/thesaurus/narrower
ChicagoSmart Define. 2015. "geological age thesaurus" https://smartdefine.org/geological_age/thesaurus/narrower (accessed September 30, 2026).
HarvardSmart Define 2015, geological age thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/geological_age/thesaurus/narrower>.
MLASmart Define. "geological age thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/geological_age/thesaurus/narrower>