Trilobita - Proetida - Phillipsiidae
Parent taxon: Phillipsiidae according to R. A. Fortey and A. P. Heward 2015
See also Hahn et al. 1985 and Owens 2003
Sister taxa: Ameropiltonia, Archegoninae, Bollandiinae, Breviphillipsia, Cummingellinae, Cyrtosymbolinae, Cystispininae, Exochops, Griffithidella, Griffithidinae, Hesslerides, Kollarcephalus, Linguaphillipsia, Linguaphillipsiinae, Lugalella, Malchi, Nunnaspis, Osmolskia, Paladin, Phillipsia, Piltonia, Rhenogriffides, Spergenaspis, Thaiaspidinae, Thigriffides, Weaniinae, Weberides
Subtaxa: Acanthophillipsia Acropyge Ameura Ampulliglabella Anisopyge Delaria Ditomopyge Dudu Hentigia Iranaspidion Jimbokranion Kaskia Kulmiella Microphillipsia Novoameura Permoproetus Pseudophillipsia Sevillia Simulopaladin Timoraspis Vidria Waideggula Witryides
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Permian of Afghanistan (8 collections), Armenia (2), Australia (9), Azerbaijan (1), Bolivia (3), Canada (4: British Columbia, Nunavut, Yukon), China (45), Guatemala (1), Indonesia (3), Iran (11), Italy (5), Japan (14), Laos (1), Malaysia (4), Mexico (2), Oman (7), Pakistan (1), Slovenia (6), Svalbard and Jan Mayen (3), Thailand (5), Tunisia (2), Turkey (1), Ukraine (3), United States (100: Arizona, California, Kansas, Nebraska, Nevada, New Mexico, Texas, Utah, Wyoming), Venezuela (2)
• Carboniferous to Permian of Belize (1)
• Carboniferous of Belgium (1), Canada (1: Nunavut), China (1), Germany (1), Iran (1), Italy (1), Slovenia (6), Svalbard and Jan Mayen (1), Ukraine (2), United States (120: Alaska, Arizona, Arkansas, California, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Pennsylvania, Texas, Utah, West Virginia)
Total: 379 collections including 513 occurrences