original description
(of Cyclas pisum Matheron, 1843 †) Matheron, P. (1843). Catalogue méthodique et descriptif des corps organisés fossiles du départment des Bouches-du-Rhône et lieux circonvoisins. <em>Répertoire des travaux de la Société de statistique de Marseille.</em> 6: 81-341., available online at http://gallica.bnf.fr/ark:/12148/bpt6k5719359d/f81.image
page(s): 220, pl. 14, figs 10, 11 [details]
original description
(of Cyclas subpisum A. d'Orbigny, 1852 †) Orbigny, A. D. d'. (1852). <i>Prodrome de paléontologie stratigraphique universelle des animaux mollusques et rayonnés, faisant suite au cours élémentaire de paléontologie et de géologie stratigraphiques</i>. vol. 3: 189 pp. + unpaginated erratum and table of contents. Paris: Masson. , available online at https://www.biodiversitylibrary.org/page/31730040
page(s): 19 [details]
basis of record
Prime, T. (1860). Synonymy of the Cyclades, a family of Acephalous Mollusca. Part 1. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 267-301., available online at https://www.biodiversitylibrary.org/page/26297414
page(s): 296 [details]
From editor or global species database
Status Taxon not discussed in the literature of the 20th and 21st century. Status uncertain! [details]