Rhynchonellata - Spiriferinida - Cyrtinidae
Parent taxon: Cyrtinoidea according to A. Williams et al. 2006
See also Brunton and Champion 1974 and Kotlyar et al. 2004
Sister taxon: Komiellidae
Subtaxa: Cyrtina Cyrtinaella Licharewina Squamulariina Tecnocyrtina
Type: Cyrtina
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Triassic of Bosnia and Herzegovina (1 collection), Canada (1: British Columbia), China (13), Italy (1), Romania (1), Ukraine (1), United States (2: Alaska)
• Permian of Greece (2), Italy (1), Japan (4), the Russian Federation (4), Svalbard and Jan Mayen (1)
• Osagean of United States (1: Kentucky)
• Carboniferous of China (1), Mexico (1), the United Kingdom (2), United States (17: Alaska, Arkansas, California, Idaho, Indiana, Missouri, Nevada, Tennessee, Texas, Utah)
• Devonian of Afghanistan (6), Australia (15), Austria (1), Belarus (1), Brazil (2), Canada (110: Alberta, Alberta, Saskatchewan, Mackenzie, British Columbia, Manitoba, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (14), Colombia (11), the Czech Republic (5), France (25), Germany (26), Luxembourg (1), Morocco (2), Myanmar (2), New Zealand (1), Poland (9), the Russian Federation (10), Spain (9), Ukraine (6), United States (298: Alaska, California, Idaho, Indiana, Iowa, Maryland, Michigan, Missouri, Montana, Nevada, New Mexico, New York, Ohio, Pennsylvania, Tennessee, West Virginia, Maryland, Pennsylvania, Wisconsin), Venezuela (4)
• Silurian to Devonian of Ukraine (1), United States (1: Oklahoma)
• Silurian of Canada (2: Northwest Territories), China (1), United States (4: California, New York)
Total: 621 collections including 664 occurrences