†family Dicoelosiidae Cloud 1948 (lamp shell)

Rhynchonellata - Orthida - Dicoelosiidae

Parent taxon: Dalmanelloidea according to M. Rubel 2011

See also Bassett and Cocks 1974, Jin and Chatterton 1997, Mitchell 1977, Williams et al. 2000, Wright 1964 and Zhang and Boucot 1988

Sister taxa: Angusticardiniidae, Dalmanellidae, Harknessellidae, Heterorthidae, Hypsomoniidae, Kayserellidae, Mystrophoridae, Paurorthidae, Platyorthidae, Portranellidae, Proschizophoriidae, Rhipidomellidae, Tyronellidae

Subtaxa: Dicoelosia Epitomyonia Teichertina

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Devonian of Australia (2 collections), Canada (5: Northwest Territories, Quebec, Yukon), China (2), the Czech Republic (6), the Russian Federation (4), Ukraine (1), United States (20: Alaska, Nevada, New York, Oklahoma, Tennessee)

• Clinton of Canada (1: British Columbia)

• Silurian to Devonian of United States (1: Oklahoma)

• Silurian of Australia (2), Belarus (1), Canada (35: New Brunswick, Northwest Territories, Nunavut, Quebec, Québec, Yukon, Yukon Territory), China (12), the Czech Republic (8), Estonia (46), Greenland (1), Iran (1), Lithuania (41), Mexico (1), Norway (29), Sweden (22), Ukraine (3), the United Kingdom (45), United States (97: Alabama, Arkansas, Illinois, Indiana, Iowa, Missouri, Nevada, New York, Oklahoma, Tennessee, Wisconsin), Venezuela (1)

• Niagaran of Canada (1: Québec)

• Ordovician to Silurian of Norway (1)

• Ordovician of Belgium (6), Canada (10: Northwest Territories, Quebec), China (2), the Czech Republic (4), Estonia (5), Ireland (2), Italy (2), Kazakhstan (1), Latvia (1), Norway (4), the Russian Federation (1), Sweden (3), the United Kingdom (15), United States (16: Alaska, California)

Total: 461 collections including 532 occurrences

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