basis of record
Nevesskaja, L.A.; Goncharova, I.A.; Paramonova, N.P.; Popov, S.V.; Babak, E.V.; Bagdasarjan, K.G.; Voronina, A.A. (1993). Opredelitel' miotsenovykh dvustvorchatykh mollyuskov yugo-zapadnoy Yevrazii. Trudy Paleontologicheskogo Instituta, 247: 1-412, available online at http://www.geokniga.org/books/14254
page(s): 254, pl. 60, figs 1-4 [details]
From editor or global species database
Status Not available from d'Orbigny (1844), who explicitly stated on p. 472 that the name Beaumontianum is a mistake. He actually referred the specimens to Cardium protractum Eichwald. Eichwald (1853) considered d'Orbigny's specimens different from C. protractum and united them with his Cardium obsoletum Eichwald, 1830. [details]