What is the meaning of lower carboniferous period?

From 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects.
- synonyms: Mississippian, Missippian period, Lower Carboniferous

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APA	WordNet. (2010). lower carboniferous period. Retrieved September 25, 2026, from http://smartdefine.org/lower_carboniferous_period/definitions/1292400
Chicago	WordNet. 2010. "lower carboniferous period" http://smartdefine.org/lower_carboniferous_period/definitions/1292400 (accessed September 25, 2026).
Harvard	WordNet 2010, lower carboniferous period, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/lower_carboniferous_period/definitions/1292400>.
MLA	WordNet. "lower carboniferous period" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/lower_carboniferous_period/definitions/1292400>

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