Synonyms|3Antonyms|0|Broader|2Narrower|0Related|0
1
period
0
geological period
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APASmart Define. (2011). pennsylvanian period thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/pennsylvanian_period/thesaurus/broader
ChicagoSmart Define. 2011. "pennsylvanian period thesaurus" https://smartdefine.org/pennsylvanian_period/thesaurus/broader (accessed September 30, 2026).
HarvardSmart Define 2011, pennsylvanian period thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/pennsylvanian_period/thesaurus/broader>.
MLASmart Define. "pennsylvanian period thesaurus" 26 April 2011. Web. 30 September 2026. <https://smartdefine.org/pennsylvanian_period/thesaurus/broader>