InversiulidaeInversiulidae is a family of bryozoans in the order Cheilostomatida.DescriptionColonies are often encrusting sheets on shells or rocks. The zooids are characterised by having an operculum that opens in the opposite way to other cheilostome genera; i.e. the hinge is located at the 'top' of the zooid.ClassificationThis family includes the following genera:Inversiula Jullien, 1888Parainversiula López-Gappa, Ezcurra, Schwaha & Pérez, 2023