Rhynchonellata - Athyridida - Rhynchospirinidae
Parent taxon: Rhynchospirinoidea according to A. Williams et al. 2002
See also Bassett and Cocks 1974, Jin and Chatterton 1997 and Temple 1987
Sister taxon: Parazygidae
Subtaxa: Homoeospira Homoeospirella Pseudoparazyga Rhyncholeptospira Rhynchospirina Trematospira
Type: Rhynchospirina
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Devonian of Austria (2 collections), Canada (5: Northwest Territories, Ontario, Quebec, Yukon), China (1), Czechia (5), Italy (4), Poland (1), the Russian Federation (4), Tajikistan (1), Ukraine (2), United States (65: California, Colorado, Nevada, New York, Oklahoma, Tennessee, West Virginia, Maryland, Pennsylvania)
• Whitwellian of Canada (3: Northwest Territories)
• Silurian to Devonian of Canada (1: Nova Scotia), Poland (1), United States (1: Oklahoma)
• Silurian of Argentina (4), Belarus (3), Canada (7: Northwest Territories, Nova Scotia, Ontario, Yukon, Yukon Territory), Estonia (13), Latvia (2), Lithuania (14), Poland (1), the Russian Federation (2), Sweden (10), Ukraine (4), the United Kingdom (8), United States (72: Alabama, Arkansas, California, Illinois, Indiana, Iowa, Maryland, Michigan, Missouri, New York, Oklahoma, Tennessee, West Virginia), Venezuela (1)
• Ordovician to Silurian of Canada (7: British Columbia)
• Ordovician of United States (1: Missouri)
Total: 245 collections including 271 occurrences