Isorthis Kozlowski 1929 (lamp shell)

Rhynchonellata - Orthida - Dalmanellidae

Parent taxon: Isorthinae according to M. Rubel 2011

See also Bassett and Cocks 1974, Hints 1975, Jin and Chatterton 1997, Sepkoski 2002, Villas and Cocks 1996, Williams et al. 2000 and Wright 1964

Sister taxa: Costisorthis, Levenea, Peleicostella, Protocortezorthis, Tyersella

Subtaxa: Isorthis (Arcualla) Isorthis (Isorthis) Isorthis (Ovalella) Isorthis (Protocortezorthis) Isorthis alpha Isorthis bailyi Isorthis crassa Isorthis estona Isorthis festiva Isorthis loveni Isorthis mediocra Isorthis parvulus Isorthis pygmaea Isorthis slitensis

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Type: Dalmanella (Isorthis) szajnochai

Ecology: stationary epifaunal suspension feeder

Distribution:

• Devonian of Afghanistan (1 collection), Australia (24), Belarus (1), Canada (7: British Columbia, Nunavut, Quebec, Yukon), China (10), the Czech Republic (5), France (3), Germany (1), Italy (2), Kazakhstan (1), New Zealand (1), Poland (4), the Russian Federation (6), Spain (1), Tajikistan (2), Ukraine (4), United States (23: Alaska, Nevada, New York, Oklahoma, Tennessee, West Virginia, Maryland, Pennsylvania)

• Whitwellian of Canada (3: Northwest Territories)

• Jaani of Estonia (6), Lithuania (6)

• Niagaran of Canada (3: Québec)

• Silurian to Devonian of Argentina (1), Australia (1), Canada (1: Nova Scotia), Poland (2), United States (1: Oklahoma)

• Silurian of Argentina (5), Australia (7), Belarus (4), Canada (39: British Columbia, New Brunswick, Northwest Territories, Nova Scotia, Nunavut, Ontario, Quebec, Québec, Yukon Territory), China (17), the Czech Republic (9), Estonia (24), Ireland (3), Latvia (1), Lithuania (42), Mexico (10), Mongolia (9), New Zealand (1), Norway (12), Poland (2), the Russian Federation (11), Spain (1), Sweden (12), Tajikistan (1), Ukraine (9), the United Kingdom (51), United States (74: Alabama, Alaska, California, Illinois, Indiana, Iowa, Missouri, Nebraska, Nevada, Oklahoma, Tennessee, Utah, Wisconsin), Venezuela (2)

• Ordovician of Australia (5), Belarus (2), China (1), Estonia (13), Ireland (1), Latvia (2), Lithuania (7), the Russian Federation (1), the United Kingdom (1)

Total: 499 collections including 527 occurrences

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Specimen images are retrieved through the ePANDDA API.


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