Genus FISTULIPORA M’Coy, 1849

Type species. Fistulipora minor M’Coy, 1849, by original designation. Mississippian (Lower Carboniferous) ; England.

Diagnosis. Massive, encrusting, or ramose colonies. Cylindrical autozooecia with thin walls and complete diaphragms. Apertures rounded, possessing horseshoe-shaped lunaria. Autozooecia separated by the extrazooidal vesicular skeleton.

Remarks. Fistulipora M’Coy, 1849 differs from Eridopora Ulrich, 1882 in having rounded, horseshoe-shaped lunaria instead of triangular ones. Furthermore, Eridopora develops persistently encrusting colonies, whereas Fistulipora may also develop massive and ramose colonies. Fistulipora differs from Dybowskiella Waagen and Wentzel, 1886, in the shape of lunaria, whose ends do not inflect autozooecial chambers.

Occurrence. Ordovician to Permian; worldwide.