Colpocoryphe is a genus of trilobites in the family Calymenidae.

Morphology

  • Convex Cephalon
  • Trapezoidal glabellae, frequently distinctly furrowed and surelevated compared to the axis.
  • Dorsal furrows slightly convergent forwardly with almost linear anterior parts.

Broad dorsal furrows, deep and not well defined.

3, rather 4, well defined lateral furrows

  • Librigenæ without lateral area or lateral furrow.
  • Preglabellar field very short, downward oriented.
  • Inflated occipital ring with smooth lateral ends.
  • Occipital furrow broad and deep.
  • Eye ridges rather weak.
  • Anterior cephalic notch marked, with frequently parallel edges.
  • Thorax : Strongly convex axis.
  • Triangular Pygidium
  • Convex axis, with segmentation well defined.
  • 6 - 8 axial rings.
  • Pleurae with deep border furrows.
  • Axis extending nearly to posterior margin (large posterior terminal piece), connected to

it by short postaxial ridge.

  • Pleural fields behind articulating half-ribs nearly smooth, with 2 - 3 very indistinct ribs.

Wide border distinctly set off by marked change in convexity.