Bivalvia - Pectinida - Entoliidae

Alternative combination: Entolium attenuatum

Full reference: C. L. Herrick. 1887. A sketch of the geological history of Licking County (Ohio), accompanying an illustrated catalogue of Carboniferous fossils from Flint Ridge, Ohio. Bulletin of the Denison University Scientific Laboratories 2:5-70

Belongs to Pernopecten according to N. D. Newell 1938

Sister taxa: Pernopecten clypeatus, Pernopecten guangdongensis, Pernopecten huayingshanensis, Pernopecten latangulatus, Pernopecten malaysia, Pernopecten obliquus, Pernopecten ohioensis, Pernopecten prosseri, Pernopecten salarius, Pernopecten sichuanensis, Pernopecten subpiriformis, Pernopecten symmetricus, Pernopecten terukoae, Pernopecten vadegensis, Pernopecten yini, Pernopecten zhutangensis

Ecology: facultatively mobile epifaunal suspension feeder