Full reference: J. Thiele. 1910. Revision des Systems der Chitonen. Zoologica 22:1-132
Parent taxon: Neoloricata according to M. D. Debrock et al. 1984
See also Abbott 1974, Pacaud and Le Renard 1995 and Zalvide et al. 2004
Sister taxa: Abyssochitonidae, Acanthochitonina, Afossochiton, Austrochiton, Beloplaxus, Chaetopleuridae, Chitonina, Crenatolorica, Cryptoplacidae, Cymatochitonina, Elachychiton, Eulachychiton, Euleptochiton, Guildingia, Ischnochitonina, Kindbladochiton, Laculina, Lavenachiton, Lirachiton, Llandeilochiton, Loboarochiton, Mesochiton, Permochiton, Proleptochiton, Protalochiton, Protochiton, Pseudoischnochiton, Trachypleura, Xylochitonidae
Subtaxa: Acutichitonidae Choriplacidae Crassitudochitonidae Glyptochitonidae Hanleyidae Homeochiton Lepidopleuridae Leptochitonidae Ochmazochitonidae Pyknochiton
Ecology: facultatively mobile epifaunal grazer
Distribution:
• Quaternary of Italy (1 collection), United States (4: California)
• Pliocene of Italy (3)
• Miocene of Belgium (1), Germany (1), New Zealand (1)
• Oligocene of Germany (1)
• Eocene to Oligocene of United States (1: Washington)
• Eocene of New Zealand (1), Ukraine (1), United States (1: Washington)
• Permian of Argentina (1), Japan (1), Malaysia (1), United States (44: Arizona, Nevada, Oregon, Texas)
• Carboniferous of Canada (1: Alberta), the Russian Federation (1), United States (11: Illinois, Ohio, Oklahoma, Pennsylvania, Texas)
• Devonian of United States (1: Pennsylvania)
Total: 77 collections including 111 occurrences