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Aptian

adjective
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Apt·​i·​an | \ ˈaptēən, -psh(ē)ən \

Definition of Aptian

: of or relating to a subdivision of the European Lower Cretaceous

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History and Etymology for Aptian

French aptien, from Apt, commune near Avignon, France + French -ien -ian

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“Aptian.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Aptian. Accessed 12 December 2019.

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