Platylepadidae Newman & Ross, 1976

Collareta, Alberto, Reitano, Agatino, Rosso, Antonietta, Sanfilippo, Rossana, Bosselaers, Mark, Bianucci, Giovanni & Insacco, Gianni, 2019, The oldest platylepadid turtle barnacle (Cirripedia, Coronuloidea): a new species of Platylepas from the Lower Pleistocene of Italy, European Journal of Taxonomy 516, pp. 1-17 : 4

Family Platylepadidae Newman & Ross, 1976

Diagnosis (after Ross & Frick 2011: 62)

Wall six-plated (R-CL1-CL2-C) or eight-plated in juvenile specimens (R-RL-CL1-CL2-C); relatively thin; parietes each with midrib and/or tooth; longitudinal tubes when present external (internal in Chelolepas ); apertural hood absent (except in Chelolepas ); primary or internal lamina (including the sheath) solid, outer lamina (when present) formed by joining of longitudinal T-shaped flanges extending from inner wall, thus forming external longitudinal canals.

Included subfamilies

Platylepadinae Newman & Ross, 1976 ; Calyptolepadinae Frick, Zardus & Lazo-Wasem, 2010; Chelolepadinae Frick & Ross, 2011 ; Cylindrolepadinae Frick & Ross, 2011 ; Stomatolepadinae Frick & Ross, 2011 .