Traits name details
original description
Ludwig, R. (1859-1860). Die Najaden der Rheinisch-Westphälischen Steinkohlen-Formation. <em>Palaeontographica.</em> 8(1-2): 31-32, 33-38., available online at https://www.biodiversitylibrary.org/page/11942992 page(s): 36, pl. 5, fig. 14 [details]
status source
Trueman, A. E.; Weir, J. (1946-1968). A Monograph of British Carboniferous non-marine Lamellibranchia. 13 parts. Monograph of the Palaeontographical Society London. Palaeontographical Society London, London, 449 pp. [Part I (1946), Part II (1947, Part III (1947), Part IV (1948), Part V (1951), Part VI (1952), Part VII (1954), Part VIII (1955, Part IX (1956); by Weir only, Part X (1960), Part XI (1966), Part II (1967), Part XIII (1968)]. page(s): 300, 302 [details]
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