Stephanollona DUVERGIER, 1920

ZÁGORŠEK, KAMIL, 2010, BRYOZOA FROM THE LANGHIAN (MIOCENE) OF THE CZECH REPUBLIC PART II: SYSTEMATIC DESCRIPTION OF THE SUBORDER ASCOPHORA LEVINSEN, 1909 AND PALEOECOLOGICAL RECONSTRUCTION OF THE STUDIED PALEOENVIRONMENT, Acta Musei Nationalis Pragae Series B 66 (3 - 4), pp. 139-255 : 139-255

Genus Stephanollona DUVERGIER, 1920

Colony encrusting. Frontal wall with marginal areolar pores only. Primary orifice with a sinus, oral spines may be present. Avicularia adventitious, situated laterally from the aperture with a large palate. Sometimes paired. Ovicell slightly immersed or recumbent, with an unperforated frontal wall.