Colpocoryphe

Morphology

Convex Cephalon

Trapezoidal glabellea, 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.