†family Leiostegiidae Bradley 1925 (trilobite)

Trilobita - Corynexochida - Leiostegiidae

Parent taxon: Leiostegioidea according to S. R. Westrop 2013

See also Adrain 2011, Fortey and Bruton 2013, Harrington and Leanza 1957, Peng 1990, Robison and Pantoja-Alor 1968 and Whittington et al. 1997

Sister taxa: Kaolishaniidae, Missisquoiidae

Subtaxa: Aedotes Agerina Annamitella Brackebuschia Chiawangella Cholopilus Chosenia Chuangiella Chuangioides Chuangiopsis Eochuangia Geminiclavula Iranaspis Kepisis Leiostegium Linguchuangia Lloydia Meropalla Pagodiidae Pagodiinae Plethopeltella Prochuangia Pseudocalymene Reubenella Schantungia Tinaspis Wanshania

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Ecology: nektobenthic carnivore

Distribution:

• Ordovician of Argentina (27 collections), Australia (3), Bolivia (1), Canada (18: Alberta, Newfoundland, Newfoundland and Labrador, Northwest Territories), China (55), the Czech Republic (3), Iran (3), Kazakhstan (5), Mexico (1), Morocco (2), Norway (1), the Russian Federation (12), South Korea (1), Sweden (14), United States (28: Idaho, Maine, Montana, Nevada, New Mexico, North Dakota, Texas, Utah, Vermont)

• Llandeilo of Canada (1: Northwest Territories), China (3)

• Whiterockian of United States (1: California)

• Castlemainian of Ireland (1)

• Dawan of China (2)

• Arenigian of China (14), United States (1: Maine)

• Arenig of Argentina (11), Australia (3), China (21), Sweden (1), United States (2: Montana, North Dakota)

• Jeffersonian of Canada (1: Newfoundland)

• Ayusokkanian of Kazakhstan (11)

• Cambrian of Argentina (1), Australia (18), Canada (12: Newfoundland and Labrador, Quebec), China (62), France (1), Iran (1), Kazakhstan (10), South Korea (19), Turkey (4), United States (13: Alaska, Idaho, South Dakota, Texas, Vermont)

Total: 388 collections including 456 occurrences

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