MolluscaBase name details
original description
(of Pachyodon vetustus T. Brown, 1843 †) Brown, T. (1843). Description of some New Species of the Genus <em>Pachyodon</em>. <em>The Annals and Magazine of Natural History.</em> 12(79): 390-396., available online at https://www.biodiversitylibrary.org/page/2237918
page(s): 395, pl. 16*, fig. 7 [details]
basis of record
Brown T. (1849). Illustrations of the fossil conchology of Great Britain and Ireland, with descriptions and localities of all the species. Smith, Elder, and Co., London and MacLachlan and Stewart, Edinburgh. viii + 273 pp., 98 pls., available online at http://babel.hathitrust.org/cgi/pt?id=nyp.33433090911037 [details]
source of synonymy
Jackson, W. (1911). On <em>Unio distortus</em> Bean, and <em>Alasmodon vetustus</em> Brown, from the Upper Estuarine Beds of Gristhorpe, Yorks. <em>The Naturalist.</em> 1911: 104-122., available online at https://www.biodiversitylibrary.org/page/29410378 [details]