original description
Sowerby, J. (1812-1815). The mineral conchology of Great Britain; or coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth [Vol. I]. London, privately published, pp. i-vii, 9-234 + index [2 pp.], pl. 1-102., available online at http://www.biodiversitylibrary.org/bibliography/14408
page(s): 80, pl. 31, figs 4-5 [details]
From editor or global species database
Type locality New Milton (Barton on Sea) ("Barton Cliff"), Hampshire, United Kingdom; Barton Group, late Lutetian to Bartonian, middle to late Eocene [details]