†Probolaeum (chiton)
Polyplacophora - Paleoloricata
Parent taxon: Paleoloricata according to J. J. Sepkoski 2002
Sister taxa: Alastega, Arctoplax, Aulochitonidae, Bursata, Chelodina, Cobcrephora, Echinochitonidae, Enetoplax, Hawthorneachiton, Heloplax, Ischnochitonina, Mattheviidae, Plectrochiton, Priscochiton, Sarkachiton, Septemchiton, Septemchitonida, Solenocaris, Thairoplax
Subtaxa: none
Ecology: facultatively mobile epifaunal grazer