MolluscaBase taxon details
original description
(of Ptychorhynchus zayssanensis Martinson & Tolstikova, 1969 †) Martinson, G.G.; Tolstikova, N.V. (1969). Novyye dvustvorchatyye mollyuski iz paleogena Zaysanskoy vpadiny [New bivalve molluscs from the Paleogene of the Zaisan Depression]. In: Barkhatova, N.N. (Ed.) Kontinental'nyye obrazovaniya vostochnykh rayonov Sredney Azii i Kazakhstana. Nauka, Leningrad, pp. 132-143.
page(s): 136-137, pl. 1, fig. 8 [details] Available for editors [request]
basis of record
Tolstikova, N.V. (1976). Mollyuski drevnikh ozer Zaysanskoy vpadiny (Yugo-vostochnyy Kazakhstan, Mel, Paleogen, Miotsen) [Mollusks of the ancient lakes of the Zaysan depression (south-eastern Kazakhstan, Cretaceous, Paleogene, Miocene)]. In: Martinson, G.G. (Ed.) Iskopayemyye presnovodnyye mollyuski i ikh znacheniye dlya paleolimnologii. Nauka, Leningrad, pp. 51-256., available online at http://mmtk.ginras.ru/pdf/iskopaem_presnovodn_moll_1980.pdf
page(s): 189, pl. 15, fig. 4 [details]