Orthis Dalman 1828 (lamp shell)

Rhynchonellata - Orthida - Orthidae

Alternative spelling: Dalmanella (Orthis)

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

See also Cooper 1956, Jaanusson and Bassett 1993, Oraspold 1959, Phleger 1933, Raymond 1911, Rubel 1961 and Sepkoski 2002

Sister taxa: Almadenorthis, Bastamorthis, Boreadorthis, Diochthofera, Duolobella, Gutiorthis, Lenorthis, Leoniorthis, Orthambonites, Orthinae, Orthostrophella, Orthostrophia, Palaeowingella, Paralenorthis, Rogorthis, Sinorthis, Sulcatorthis, Sulevorthis, Suriorthis, Taphrorthis, Trondorthis

Subtaxa: Orthis (Finkelnburgia) Orthis (Orusia) Orthis acuminata Orthis australis Orthis berthoisi Orthis biforata Orthis biloba Orthis bilobata Orthis callactis Orthis christianae Orthis cypha Orthis davidsoni Orthis expansa Orthis intercostata Orthis kreklingensis Orthis laticostata Orthis perveta Orthis piger Orthis reversa Orthis ribeiroi Orthis spinigera Orthis subalata Orthis testudinaria Orthis tulliensis

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Jurassic of France (1 collection)

• Permian of India (1), Laos (1), Pakistan (4), Slovenia (1)

• Carboniferous to Permian of Bolivia (1)

• Carboniferous of Australia (1)

• Devonian of Colombia (1), South Africa (3), United States (18: Alaska, New York)

• Silurian of Brazil (1), India (5), Italy (1), Mauritania (2), United States (15: Indiana, New York)

• Dobrotivian of France (5)

• Chazyan of United States (5: New York, Tennessee, Utah)

• Whiterockian of United States (8: Utah)

• Volkhov of Estonia (2), the Russian Federation (6)

• Valaste of Estonia (4)

• Hunderum of the Russian Federation (1), Sweden (3)

• Arenigian of the Russian Federation (1)

• Arenig of Argentina (4), Bolivia (2), China (29), the United Kingdom (4)

• Dawan of China (8)

• Ordovician of Argentina (1), Canada (1: Nunavut), China (17), the Czech Republic (1), Estonia (3), Iran (2), North Korea (1), Norway (2), Portugal (1), the Russian Federation (20), South Korea (1), Spain (1), Sweden (7), the United Kingdom (1), United States (35: California, Kentucky, Nevada, Ohio, Utah)

• Tremadoc of China (8), United States (1: Vermont)

• Ibexian of United States (1: New York)

Total: 242 collections including 245 occurrences

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Specimen images are retrieved through the ePANDDA API.


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