MolluscaBase taxon details
original description
(of Cryptodon ignotus Korobkov, 1939 †) Korobkov I.A. (1939). Моллюски нижнего олигоцена Северного Кавказа (зона Variamussium fallax Korobkov) [= The Lower Oligocene mollusks of North Caucasus (the Variamussium fallax Korobkov zone). <em>Trudy NGRI, series A.</em> 113: 1-94. page(s): 27, pl. III, fig. 6-15 [details]
basis of record
Hacobjan V.T. (ed.). (1974). Atlas of the fossil fauna of Armenian SSR [= Атлас ископаемой фауны Армянской ССР]. <em>Yerevan: The Armenian SSR Academy of Science Press.</em> 838 p. page(s): 328, pl. 167, fig. 5 [details]
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