Polyplacophora - Chitonida - Ischnochitonidae
Parent taxon: Acanthochitonina according to Y. Wu and D. E. Lee 2024
See also Abbott 1974, Beesley 1998, Martin 1904, Pacaud and Le Renard 1995 and Smith 1973
Sister taxa: Acanthochitonidae, Chitonidae, Loricidae
Subtaxa: Allochiton Callochitoninae Chaetopleurinae Cyanoplax Heterochiton Ischnochitoninae Lepidochitoninae Lepidozona Schizoplacinae Stenoplax Stenosemus Tonicella Tripoplax
Ecology: facultatively mobile epifaunal grazer
Distribution:
• Quaternary of Mexico (6 collections), United States (35: Alaska, California, Florida)
• Pliocene of Italy (5), United States (2: California)
• Miocene of Japan (1)
• Oligocene of United States (1: Washington)
• Eocene to Oligocene of United States (2: Washington)
• Eocene of Hungary (1), the United Kingdom (1), United States (3: Washington)
• Jurassic of Germany (1), Italy (1)
Total: 59 collections including 131 occurrences