MolluscaBase taxon details
original description
(of Planorbis thiollieri Michaud, 1855 †) Michaud, G. (1855). Descriptions de coquilles fossiles découvertes dans les environs de Hauterive (Drôme). <em>Annales de la Societé Linnéenne de Lyon, N.S.</em> 2: 33-64., available online at https://www.biodiversitylibrary.org/page/3487714
page(s): 54-56, pl. 4, figs 9-11 [details]
original description
(of Planorbis affinis Michaud, 1862 †) Michaud, G. (1862). Description des Coquilles fossiles des environs de Hauterive (Drôme). <em>Journal de Conchyliologie.</em> 10, 58-84., available online at https://www.biodiversitylibrary.org/page/15134773
page(s): 79, pl. 4, fig. 13 [details]
From editor or global species database