original description
Eberzin, A.G. (1962). Solonovatovodnyye kardiidy pliotsena SSSR. Chast' IV. Rod <i>Didacna</i> Eichwald, podrody <i>Pontalmyra</i> i <i>Crassidacna</i>. Trudy Paleontologicheskogo Instituta, 91: 1-179, available online at http://www.geokniga.org/books/14059
page(s): 101-102, pl. 19, figs 3-4 [details]
source of synonymy
Nevesskaja, L.A.; Paramonova, N.P.; Babak, E.V. (1997). Opredelitel' pliotsenovykh dvustvorchatykh mollyuskov yugo-zapadnoy Yevrazii. Trudy Paleontologicheskogo Instituta, 269: 1-267, available online at http://www.geokniga.org/books/14238
page(s): 61 [details]
From editor or global species database
Type locality "Kerchenskiy poluostrov, poberezh'ye Azovskogo morya vostochneye s. Nasyr" [Kerch peninsula, coast of Azov Sea east of Nasyr, Crimea]; late Pontian, latest Miocene-earliest Pliocene [details]