Cymbopleura Incertiformis Guide
Credit: Loren Bahls
  1. Valves lanceolate
  2. Valves barely dorsiventral
  3. Apices weakly protracted
  4. Axial area narrow

Cymbopleura incertiformis has lanceolate valves that are nearly symmetric, or just barely dorsiventral. Apices are either not protracted, or only weakly protracted. The axial area is narrow.