Gomphoneis Apiculata Guide
Credit: Pat Kociolek
  1. Valves broadly lanceolate-clavate
  2. Headpole apiculate
  3. Longitudinal lines near the axial area

Valves are broadly lanceolate-clavate, with an apiculate headpole and a rounded footpole. Longitudinal lines are present on either side of the axial area, and may be indistinct in some specimens.