carboniferous
From Longman Dictionary of Contemporary EnglishRelated topics: Geologycarboniferouscar‧bon‧if‧er‧ous /ˌkɑːbəˈnɪfərəs◂ $ ˌkɑːr-/ adjective technical HEGproducing or containing carbon or coal carboniferous rocksExamples from the Corpuscarboniferous• The ones now dead, and carboniferous fruit themselves.• The layer upon layer of carboniferous fruit.Origin carboniferous (1700-1800) carbon + -iferous “containing, producing” (from Latin -fer)