Paragastropoda - Mimospirida - Onychochilidae
Full reference: E. Koken and J. Perner. 1925. Die Gastropoden des baltischen Untersilurs 1-324
Parent taxon: Clisospiroidea according to P. Bouchet et al. 2005
See also Bengtson et al. 1990, Dzik 1983, Ebbestad et al. 2021, Elicki 1994, Golikov and Starobogatov 1975, Jeffery 2003, Knight et al. 1960, Kosnik 2002, Linsley and Kier 1984, Missarzhevsky 1989 and Parkhaev 2001
Sister taxon: Clisospiridae
Subtaxa: Antispira Catalanispirinae Helicotis Hyperstropheminae Kistasella Kobayashiella Laeogyra Matherella Onychochilinae Scaevogyrinae Sinistracirsa Sinistriconcha Voskopiella Yuwenia
Type: Onychochilinae
Distribution:
• Carboniferous of Australia (2 collections)
• Devonian of Canada (1: Northwest Territories), the Czech Republic (3)
• Silurian of the Czech Republic (1), Sweden (10), United States (1: Ohio)
• Uhaku of Estonia (1)
• Letna of the Czech Republic (1)
• Whiterockian of United States (4: Nevada)
• Ordovician of China (1), the Czech Republic (6), Morocco (1), Sweden (5), United States (4: Texas, Vermont, illinois)
• Cressagian of South Korea (1)
• Cambrian of Antarctica (1), Australia (4), China (1), Germany (1), United States (10: Minnesota, Missouri, New York, Utah, Wisconsin)
Total: 59 collections including 66 occurrences