Patellastra Monterosato 1884 (snail)
Parent taxon: Patellogastropoda according to J. J. Sepkoski 2002
Sister taxa: Acmaeoidea, Lepetopsina, Nacellina, Actinoleuca, Ancistromesus, Ansates, Atalacmea, Conoidacmea, Parvacmea, Patelloidea, Nacelloidea, Neolepetopsoidea, Lottioidea
Subtaxa: none
Ecology: facultatively mobile epifaunal grazer