Trilobita - Corynexochida - Leiostegiidae
Parent taxon: Leiostegiidae according to P. A. Jell and J. M. Adrain 2002
See also Harrington and Leanza 1957, Phleger 1933 and Whittington 1968
Sister taxa: Aedotes, Agerina, Annamitella, Arcifimbria, Brackebuschia, Chiawangella, Cholopilus, Chosenia, Chuangiella, Chuangioides, Chuangiopsis, Eochuangia, Geminiclavula, Iranaspis, Kepisis, Leiostegium, Linguchuangia, Meropalla, Pagodiidae, Pagodiinae, Plethopeltella, Prochuangia, Pseudocalymene, Reubenella, Schantungia, Tinaspis, Trephina, Wanshania
Subtaxa: Lloydia (Evansaspis) Lloydia (Leiostegium) Lloydia obsoletus
Ecology: nektobenthic carnivore
Distribution:
• Whiterockian of United States (1: California collection)
• Arenig of United States (1: Montana)
• Ordovician of Canada (2: Newfoundland, Newfoundland and Labrador), United States (8: Montana, North Dakota, Utah)
• Tremadoc of Argentina (7), Canada (1: Newfoundland and Labrador)
Total: 20 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.