subcarboniferous
/'sʌb,kɑ:bә'nifәrәs/
📖 中文释义
- 亚石炭系
📘 English Definition（英文释义）
- 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.
- n. The Subcarboniferous period or formation.