Traits name details
original description
Martinson, G. G.; Kolesnikov, C. M. (1974). Melovyye limnicheskiye mollyuski iz kostenosnykh gorizontov Mongolii [Cretaceous limnic molluscs from the bone-bearing horizons of Mongolia]. <em>Trudy Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya.</em> 1: 235-246. page(s): 242-243, pl. 2, figs 4, 5 [details] Available for editors 
additional source
Martinson, G. G. (1982). Pozdnemelovyye mollyuski Mongolii: sistematika, stratigrafiya, tafonomiya [Late Cretaceous mollusks of Mongolia: taxonomy, stratigraphy, taphonomy]. <em>Trudy Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya.</em> 17: 1-82., available online at https://www.geokniga.org/books/10159 page(s): 50, pl. 9, fig. 1 [details] Available for editors 
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