\Cal*cif"er*ous\, a. [L. calx, calcis, lime +
-ferous.]
Bearing, producing, or containing calcite, or carbonate of
lime.
{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}.