Leiostegium Raymond 1913 (trilobite)

Trilobita - Corynexochida - Leiostegiidae

Synonym: Alloleiostegium Zhou and Zhang 1978

Parent taxon: Leiostegiidae according to R. A. Fortey and D. L. Bruton 2013

See also Jell and Adrain 2002 and Sepkoski 2002

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

Subtaxa: Leiostegium (Euleiostegium) Leiostegium (Perischodory) Leiostegium goodwinensis Leiostegium manitouensis Leiostegium proprium Leiostegium quadratus Leiostegium spongiosum Leiostegium tyboensis

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Type: Bathyurus quadratus

Ecology: nektobenthic carnivore

Distribution:

• Ordovician of Argentina (2 collections), Australia (2), Bolivia (1), Canada (15: Alberta, Newfoundland, Newfoundland and Labrador, Northwest Territories), China (5), Norway (1), United States (16: Idaho, Montana, Nevada, New Mexico, Texas, Utah, Vermont)

• Arenig of Argentina (1), China (1)

• Jeffersonian of Canada (1: Newfoundland)

• Cambrian of China (7), United States (1: Idaho)

Total: 53 collections including 57 occurrences

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Specimen images are retrieved through the ePANDDA API.


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