Traits taxon details
original description
Forbes, E. (1856). On the Tertiary Fluvio-marine Formation of the Isle of Wight Longman, Brown, Green, and Longmans, London, 162 pp., available online at https://books.google.at/books?id=YibPAAAAMAAJ&printsec=frontcover&hl=de&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false page(s): 147, pl. 2, fig. 6 [details]
additional source
Woodward, F. R. (1965). Monograph of the British Lower Tertiary Unionidae, with descriptions of three new species. <em>Journal of Conchology.</em> 25(8): 316-330, pls 22-27. page(s): 322, pl. 24, fig. 6, pl. 25, figs 7-10 [details] Available for editors 
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