n.1.(Zool.) A genus of fossil corals, common in the lower Silurian limestones.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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This morphotype grows encrusting other organisms, such as rugose corals or Chaetetes. The corallite length is very short, showing an open calyx almost from the beginning of the offsetting (Fig.