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
Type: Bathyurus quadratus
Ecology: nektobenthic carnivore
Distribution:
• Arenig of Argentina (1 collection), China (1)
• Ordovician of Australia (1), Canada (5: Alberta, Newfoundland, Northwest Territories), Norway (1), United States (15: Idaho, Montana, Nevada, New Mexico, Texas, Utah)
• Tremadoc of Argentina (2), Bolivia (1), Canada (11: Alberta, Newfoundland and Labrador, Northwest Territories), China (4), United States (1: Vermont)
• Cambrian of Australia (1), China (8), United States (1: Idaho)
Total: 53 collections including 57 occurrences
Specimen images are retrieved through the ePANDDA API.
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