Bivalvia - Cardiida - Kalenteridae

Alternative combination: Pleurophorus bregeri

Full reference: G. H. Girty. 1927. Descriptions of new species of Carboniferous and Triassic fossils (from southeastern Idaho). United States Geological Survey Professional Paper 152:411-446

Belongs to Permophorus according to K.W. Ciriacks 1963

Sister taxa: Permophorus albequus, Permophorus angustus, Permophorus costatus, Permophorus gregarius, Permophorus guangxingensis, Permophorus lianyuanensis, Permophorus mexicanus, Permophorus oblongus, Permophorus obovatus, Permophorus octocostatus, Permophorus pricei, Permophorus proprius, Permophorus shuangfengensis, Permophorus subcostatus, Permophorus subovalis, Permophorus tenuistriatus, Permophorus triassicus, Permophorus vendiavkiriensis, Pleurophorus tropidophorus, Pleurophorus occidentalis, Pleurophorus delawarensis, Pleurophorus imbricatus, Pleurophorus lunulus, Pleurophorus overbecki, Pleurophorus quinquecostatus

Ecology: facultatively mobile shallow infaunal suspension feeder

Average measurements (in mm): shell length 13.2, valve length 6.45