Traits name details
original description
Yabe, H. & Nagao, T. (1928). Cretaceous fossils from Hokkaido: Annelida, Gastropoda and Lamellibranchiata. <em>The Science Reports of the Tōhoku University, Series 2, Geology.</em> 9: 77-96. page(s): 84, pl. 16, fig. 20 [details] Available for editors 
basis of record
Cooper, M. R. & Leanza, H. A. (2017). On the Steinmanellidae (Bivalvia: Myophorelloidea); their palaeo-biogeography, evolution and classification. <em>Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen.</em> 285 (3): 313-335., available online at https://doi.org/10.1127/njgpa/2017/0683 [details] Available for editors 
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