Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Parent taxon: Trigonirhynchiidae according to L. Hints and D. A. T. Harper 2015
See also Jakobsen et al. 2014, Jin and Chatterton 1997 and Williams et al. 2002
Sister taxa: Ancillotoechia, Angustispatulata, Hemitoechiinae, Ptychomalotoechia, Ripidiorhynchinae, Trigonirhynchiinae, Virginiatinae
Subtaxa: Azamella Evenkorhynchia Lepidocycloides Plectothyrella Rostricellula
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of Argentina (4 collections), Canada (3: New Brunswick, Quebec, Québec), China (7), Iran (1), Jordan (4), Norway (3), the Russian Federation (1), the United Kingdom (4)
• Dobrotivian of Spain (1)
• Whiterockian of Canada (2: Northwest Territories), United States (1: Virginia)
• Chazyan of Canada (26: Northwest Territories, Ontario, Quebec), United States (43: New York, Tennessee, Vermont)
• Ordovician to Silurian of Canada (4: Quebec), South Africa (1)
• Ordovician of Argentina (3), Australia (4), Bolivia (1), Canada (24: British Columbia, Newfoundland and Labrador, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (26), the Czech Republic (7), Estonia (14), France (2), Iran (1), Ireland (1), Kazakhstan (1), Latvia (24), Mongolia (2), Morocco (5), Myanmar (1), New Zealand (1), Norway (7), Paraguay (4), Poland (1), Portugal (3), the Russian Federation (62), Spain (5), Sweden (10), Turkey (2), the United Kingdom (43), United States (91: Georgia, Illinois, Iowa, Kentucky, Minnesota, Oklahoma, Tennessee, Virginia, Wisconsin), Venezuela (1)
Total: 451 collections including 490 occurrences