Bivalvia - Cardiida - Kalenteridae

Alternative combination: Sphenotus octocostatus

Belongs to Permophorus according to R. D. Hoare 1993

Sister taxa: Permophorus albequus, Permophorus angustus, Permophorus bregeri, Permophorus costatus, Permophorus gregarius, Permophorus guangxingensis, Permophorus lianyuanensis, Permophorus mexicanus, Permophorus oblongus, Permophorus obovatus, 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