†unranked clade Machaeridia (scale worm)
Parent taxon: Aphroditiformia according to L. A. Parry et al. 2019
See also Adrain 1992, Sepkoski 2002 and Vinther et al. 2008
Sister taxa: none
Subtaxa: Cuniculepadida Hercolepadida Lepidocoleomorpha Plumulites Turrilepadida Turrilepadomorpha
Ecology: epifaunal grazer