Genus ERIDOPORA Ulrich, 1882

Type species. Eridopora macrostoma Ulrich, 1882, by original designation. Mississippian (Lower Carboniferous); North America .

Diagnosis. Thin encrusting colonies. Oval apertures with strongly developed lunaria of distinct triangular shape. Cylindrical autozooecia with thin walls and complete diaphragms. Vesicular skeleton consists of angular vesicles.

Remarks. Eridopora Ulrich, 1882, differs from Fistulipora M’Coy, 1849, in having large triangular lunaria instead of horseshoe-shaped ones, and predominantly encrusting colonies.

Occurrence. Devonian to Permian; worldwide.