Eoorthis Walcott 1908 (lamp shell)

Rhynchonellata - Orthida - Eoorthidae

Full reference: C. W. Walcott. 1908. Cambrian Brachiopoda: descriptions of new genera and species. Smithsonian Miscellaneous Collections 53(3):53-137

Parent taxon: Eoorthidae according to A. Williams et al. 2000

See also Henningsmoen 1958 and Sepkoski 2002

Sister taxa: Apheoorthina, Apheoorthis, Austrohedra, Brahimorthis, Glaphyrorthis, Jivinella, Ocnerorthis, Otusia, Pompeckium, Robertorthis

Subtaxa: Eoorthis indianola Eoorthis newberryi Eoorthis remnicha Eoorthis sabus Eoorthis thyone Eoorthis zeno

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Type: Orthis remnicha

Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of Canada (1: Quebec collection), China (1), the Russian Federation (1), South Korea (4)

• Tremadoc of Argentina (5), China (4), the Czech Republic (1)

• Skullrockian of Greenland (1)

• Cambrian of Australia (1), Norway (3), the Russian Federation (3), United States (17: Montana, Oklahoma, Pennsylvania, South Dakota, Utah, Wyoming)

Total: 42 collections including 45 occurrences

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