Traits name details
original description
Wright, W. B. (1929). The Zonal Succession in the Coal Measures around Manchester. <em>Summary of Progress of the Geological Survey.</em> 1928(2): 36-55., available online at https://pubs.bgs.ac.uk/publications.html?pubID=B00180 page(s): 42, pl. 1, fig. 9, 9A [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): 418 [details]
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