Microsolenidae Koby, 1889

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 166

Family Microsolenidae Koby, 1889

Diagnosis. Simple and colonial. Colony formation by intra- and extratentacular budding. Corallite walls absent or slightly delineated by synapticular rings. Epitheca complete but very thin. Septa thin, regularly fenestrate. Synapticulae abundant, regularly distributed. Pennular edges directed upwards, ornamented with rounded, equal dentations. Endothecal and exothecal dissepiments thin, if developed. Columella parietal or styliform.

Remarks. The presence of regularly confluent septocostae constitute the principal distinction between this family and the more highly developed actinacidids.