Subclass Ascothoracida Lacaze-Duthiers 1880
Alternative spelling: Ascothoracica
Parent taxon: Thecostraca according to B. K. K. Chan et al. 2021
See also Hegna et al. 2020, Martin and Davis 2001 and Newman et al. 1969
Sister taxa: Ascothoracida, Cirripedia, Facetotecta
Subtaxa: Dendrogastrida Endosacculus Laurida