Nanorthis Ulrich and Cooper 1936 (lamp shell)

Rhynchonellata - Orthida - Plectorthidae

Synonym: Evenkinorthis

Full reference: E. O. Ulrich and G. A. Cooper. 1936. New Genera and Species of Ozarkian and Canadian Brachiopods. Journal of Paleontology 10(7):616-631

Parent taxon: Plectorthidae according to A. Williams et al. 2007

See also Sepkoski 2002, Ulrich and Cooper 1936 and Williams et al. 2000

Sister taxa: Apollonorthis, Ashinaorthis, Atlantida, Corineorthis, Desmorthis, Doleroides, Hebertella, Irhirea, Lipanorthis, Mimella, Oligorthis, Orthostrophiinae, Paterorthis, Platystrophiinae, Platystrophinae, Plectorthinae, Plectorthis, Pseudomimella, Schizophorella, Severginella

Subtaxa: Nanorthis carinata Nanorthis hamburgensis Nanorthis purmamarcaensis Nanorthis putilla

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of Argentina (10 collections), Australia (6), Bolivia (1), Canada (3: Alberta, British Columbia), China (8), Colombia (1), the Czech Republic (2), the Russian Federation (17), Sweden (7), United States (32: Idaho, Montana, Nevada, North Dakota, Utah)

• Arenig of Argentina (5), China (8), the Russian Federation (2), Sweden (5), United States (3: Montana, North Dakota)

• Cambrian to Ordovician of the Russian Federation (1)

• Cambrian of Canada (2: Alberta, Newfoundland and Labrador)

Total: 113 collections each including a single occurrence

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