Orthis Dalman 1828 (lamp shell)

Rhynchonellata - Orthida - Orthidae

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

See also 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 acuminata Orthis australis Orthis berthoisi Orthis biforata Orthis bilobata Orthis callactis Orthis christianae Orthis christianiae Orthis expansa Orthis intercostata Orthis laurentina Orthis piger Orthis reversa Orthis spinigera

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Type: Orthis callactis

Ecology: stationary epifaunal suspension feeder

Distribution:

• Jurassic of France (1 collection)

• Permian of India (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 (16: Indiana, New York)

• Ordovician of Argentina (1), Canada (1: Nunavut), China (23), the Czech Republic (1), Estonia (9), France (5), Iran (2), North Korea (1), Norway (2), Portugal (1), the Russian Federation (26), South Korea (1), Spain (1), Sweden (10), the United Kingdom (1), United States (36: Nevada, New York, Ohio, Utah, Vermont)

• Llandeilo of China (2)

• Chazy of United States (1: New York)

• Whiterockian of United States (8: Utah)

• Dawan of China (8)

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

• Arenigian of the Russian Federation (1)

Total: 236 collections including 239 occurrences

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Specimen images are retrieved through the ePANDDA API.


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