†family Echinochitonidae Pojeta et al. 2003 (chiton)
Polyplacophora - Paleoloricata - Echinochitonidae
Full reference: J., J.r. Pojeta, D. J. Eernisse, R. D. Hoare and M. D. Henderson. 2003. Echinociton dufoei: a new spiny Ordovician chiton. Journal of Paleontology 77(4):646-654
Parent taxon: Paleoloricata according to J., Jr. Pojeta et al. 2003
Sister taxa: Alastega, Arctoplax, Aulochitonidae, Bursata, Chelodina, Cobcrephora, Hawthorneachiton, Kulindroplax, Mattheviidae, Phthipodochiton, Plectrochiton, Priscochiton, Probolaeum, Septemchiton, Septemchitonida, Solenocaris, Thairoplax
Subtaxa: Echinochiton
Type: Echinochiton
Ecology: facultatively mobile epifaunal grazer
Distribution: found only at Top of quarry, north side of Wisconsin State Rte 81, 6.4 km west of Rte 213 (Ordovician of Wisconsin)