Infraclass Thoracica Darwin 1854
Parent taxon: Cirripedia according to B. K. K. Chan et al. 2021
See also Hegna et al. 2020, Jones 2007, Martin 1904, Martin and Davis 2001, Wilson 1983 and Zullo 1984
Sister taxa: Acrothoracica, Bassettina, Chitobalanus, Corobalanus, Ctenaenigmatidae, Ilba, Rhizocephala, Schreteriella
Subtaxa: Lepadiformes Pedunculata Phosphatothoracica Scalpelliformes Thoracicalcarea