†suborder Anazygidina Copper 1996 (lamp shell)

Rhynchonellata - Atrypida

Parent taxon: Atrypida according to A. Williams et al. 2002

Sister taxa: Antelocoelia, Atrypidina, Davidsoniidina, Lissatrypidina, Protatrypinae, Undithyrella, Wutubulakia

Subtaxa: Anazygoidea

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Silurian of Canada (11: New Brunswick, Northwest Territories, Nunavut, Quebec, Québec collections), China (5), Estonia (9), Lithuania (5), Mongolia (7), the Russian Federation (11), Sweden (5), the United Kingdom (3), United States (6: California, Nevada, Utah)

• Whiterockian of United States (2: California)

• Ordovician to Silurian of Canada (2: Québec), United States (1: California)

• Ordovician of Australia (22), Belgium (2), Canada (116: British Columbia, Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (17), the Czech Republic (2), Estonia (5), Latvia (1), Lithuania (1), Norway (4), the Russian Federation (5), the United Kingdom (28), United States (980: Alabama, Alaska, California, Colorado, Georgia, Idaho, Illinois, Iowa, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Missouri, Nevada, New Mexico, New York, Ohio, Pennsylvania, Pennsylvania and Virginia, Tennessee, Texas, Virginia, Wyoming)

Total: 1250 collections including 1352 occurrences

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