Noun
- plural form of geologic era
geologic-eras
English Wiktionary. Available under CC-BY-SA license.
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"geologic-eras." YourDictionary, n.d. Web. 16 January 2019. <https://www.yourdictionary.com/geologic-eras>.
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geologic-eras. (n.d.). Retrieved January 16th, 2019, from https://www.yourdictionary.com/geologic-eras
