Parent taxon: Neoloricata according to P. L. Beesley 1998
Sister taxa: Abyssochitonidae, Acanthochitonina, Acanthopleura, Afossochiton, Amicula, Austrochiton, Beloplaxus, Chaetopleuridae, Chitonidae, Chitonina, Colapterochiton, Crenatolorica, Cryptoconchus, Cryptoplacidae, Cyanoplax, Cymatochiton, Elachychiton, Eulachychiton, Euleptochiton, Glaphurochiton, Glyptochiton, Guildingia, Hanleyidae, Kindbladochiton, Laculina, Lavenachiton, Lepidopleurina, Lirachiton, Llandeilochiton, Loboarochiton, Mesochiton, Nuttallina, Permochiton, Proleptochiton, Protalochiton, Protochiton, Pseudoischnochiton, Stenoplax, Tonicella, Trachypleura, Xylochitonidae
Subtaxa: Heterochitoninae, Katharininae, Mopaliinae, Placiphorella, Plaxiphora
Ecology: facultatively mobile epifaunal grazer