Cornutoentolium Romanov, 1985
ROMANOV, L. F. 1985. Jurassic pectinoids from southern USSR. Kishinev. Shtiintsa. 231 p., pls. 1-30 (in Russian).
«The dorsal projection of auricles above hinge-line was used in the orientation of the shells to distinguish left from right valves. Nevertheless, whereas some authors (such as NEWELL & HERTLEIN in COX et al. 1969, DUFF 1978) believe that only the left valve has dorsally projected auricles, others (ARKELL 1930, JOHNSON 1984) state that the margin is dorsally projected only in the right valve. This agrees with the auricle shape in living species of Pectinella (see DIJKSTRA 1995, figs. 71-74). COX (1952) regarded this as a feature which varies in different species and KELLY (1984) Iater demonstr.ated that, st least in some well-characterized species of Entolium, both valves have dorsally projected auricles, as in the case of the material described here. According to KELLY (1984) it is not possible to use the elevation of the dorsal wings in the orientation of the valves. Forms with extreme development of this character were recognized as the group of Entolium cornutum QU. by STAESCHE (1926) or the genus Cornutoentolium by ROMANOV (1985).»
DAMBORENEA, S. E. 2002. Early Jurassic bivalves of Argentina. Part 3: Superfamilies Monotoidea, Pectinoidea, Plicatuloidea and Dimyoidea. Palaeontographica Abteilung A, 265: 1-119. [p. 42]
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