Strophomenata - Strophomenida - Sowerbyellidae
Parent taxon: Eoplectodonta according to M. Rubel 2011
Sister taxa: Eoplectodonta (Ygerodiscus), Eoplectodonta acuminata, Eoplectodonta bidecorata, Eoplectodonta budgei, Eoplectodonta california, Eoplectodonta duvalii, Eoplectodonta moelsi, Eoplectodonta nesnakomkaensis, Eoplectodonta oscitanda, Eoplectodonta penkillensis, Eoplectodonta percedens, Eoplectodonta praecursor, Eoplectodonta precursor
Subtaxa: Eoplectodonta (Eoplectodonta) abigailae Eoplectodonta (Eoplectodonta) alternata Eoplectodonta (Eoplectodonta) boucoti Eoplectodonta (Eoplectodonta) conspicua Eoplectodonta (Eoplectodonta) duplicata Eoplectodonta (Eoplectodonta) duvalii Eoplectodonta (Eoplectodonta) exceptionis Eoplectodonta (Eoplectodonta) hudsonensis Eoplectodonta (Eoplectodonta) jongensis Eoplectodonta (Eoplectodonta) lenis Eoplectodonta (Eoplectodonta) paucicostellata Eoplectodonta (Eoplectodonta) penkillensis Eoplectodonta (Eoplectodonta) rhombica Eoplectodonta (Eoplectodonta) semirugata Eoplectodonta (Eoplectodonta) tenera Eoplectodonta (Eoplectodonta) transversalis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Whitwellian of Canada (3: Northwest Territories collections)
• Jaani of Estonia (8), Lithuania (4)
• Silurian of Argentina (1), Canada (22: Nunavut, Ontario, Quebec), China (2), Estonia (16), Lithuania (4), Norway (42), Sweden (8), the United Kingdom (138), United States (61: Indiana, New York, Tennessee)
• Ordovician to Silurian of Norway (1)
• Ordovician of Canada (10: British Columbia), Mongolia (1), Norway (5), the Russian Federation (1), Sweden (2), Türkiye (1), the United Kingdom (27), United States (5: Nevada, Virginia)
Total: 362 collections including 375 occurrences