Geol. [f. CULM1 + -(I)FEROUS, after carboniferous.] Containing or producing culm or impure anthracite.
1837. Sedgwick & Murchison, in Trans. Geol. Soc., V. 670. In North Devon, the beds of the highest group … pass regularly under the base of the culmiferous rocks. Ibid., 664. The culmiferous series.
1841. Trimmer, Pract. Geol., 209. The culmiferous rocks of Devonshire.
