Coltraneia is a genus of trilobite, that lived during the upper Emsian and lower Eifelian, and has been found in Algeria, France, Germany, Morocco and Spain.
The frontal lobe of the central raised area of the headshield (or glabella) is rounded.
All sighted phacopina have schizochroal eyes, but in Coltraneia these are particularly large with 13–14 lenses in each of the vertical rows (or dorsoventral file) at midlength.
The five pairs of pygidial spines (or lappets) extend from both the anterior and posterior pleural bands.
Viewed from the front the anterior border in Treveropyge is straight, while in Coltraneia it is arched upwards like a fold in a rug.