Strophomenata - Productida - Productellidae
Full reference: C.H.C. Brunton, S.S. Lazarev, and R.E. Grant. 1995. A review and new classification of the brachiopod order Productida. Palaeontology 38(4):915-936
Parent taxon: Overtoniinae according to A. Williams et al. 2000
Sister taxa: Avoniini, Costispiniferini, Guangia, Institiferini, Lethamiini, Overtoniini
Subtaxa: Krotovia Scoloconcha
Type: Krotovia
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Triassic of Canada (1: Nunavut collection)
• Permian of Austria (1), Canada (11: Alberta, British Columbia, Nunavut, Yukon), China (12), Croatia (1), Greenland (12), Japan (1), Laos (1), Mexico (2), Myanmar (1), the Russian Federation (3), Slovenia (1), Svalbard and Jan Mayen (1), Thailand (1), United States (33: Alaska, Oregon)
• Carboniferous of Australia (20), Canada (2: Nunavut, Yukon), China (2), Ireland (4), Italy (1), Malaysia (1), the Russian Federation (1), Spain (1), the United Kingdom (11), United States (19: Alaska, Arkansas, California, Nevada, Oklahoma, Wyoming)
• Devonian of Germany (6)
Total: 150 collections including 177 occurrences