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Definition of Subcarboniferous
1. a. Of or pertaining to the lowest division of the Carboniferous formations underlying the proper coal measures. It was a marine formation characterized in general by beds of limestone.
Definition of Subcarboniferous
1. Proper noun. (geology) The lowest division of the Carboniferous formations underlying the proper coal measures; a marine formation characterized in general by beds of limestone. ¹
¹ Source: wiktionary.com