calciferous, a. [L. calx, calcis, lime + -ferous.].
Calciferous epoch (Geol.), an epoch in the American lower Silurian system, immediately succeeding the Cambrian period. The name alludes to the peculiar mixture of calcareous and siliceous characteristics in many of the beds. See the Diagram under Geology.
Bearing, producing, or containing calcite, or carbonate of lime. [1913 Webster]