MolluscaBase taxon details
original description
Ihering, H. von. (1907). Les mollusques fossiles du Tertiaire et du Crétacé supérieur de l'Argentine. <em>Anales del Museo Nacional de Buenos Aires.</em> ser. 3, 7: xiii, 1–611, 18 pls., available online at http://www.biodiversitylibrary.org/item/50857 page(s): 467, pl. 18, fig. 129 [details]
original description
(of Modiola contorta Borchert, 1901 †) Borchert, A. (1901). Beiträge zur Geologie und Palaeontologie von Südamerika. Unter Mitwerkung von Fachgenossen herausgegeben von G. Steinmann. IX. Die Molluskenfauna und das Alter der Paraná-Stufe. <em>Neues Jahrbuch für Mineralogie, Geologie und Palaeontologie, Beilage.</em> 14: 171-245; plates VI-X. [details]
source of synonymy
Parodiz, J.J. (1996). The taxa of fossil Mollusca introduced by Hermann von Ihering. <em>Annals of Carnegie Museum.</em> 65(3): 183-296., available online at https://archive.org/details/annalsofcarnegi651996carn/page/n197/mode/2up page(s): 226 [details]
From editor or global species database
Homonymy Ihering (1907) considered Modiola contorta Borchert, 1901 an unionid of the genus Diplodon. For whatever reason, he treated the species as a homonym of Unio contortus (authority not stated but probably he meant Lea, 1857) and introduced Diplodon fraus as replacement name. Since there was no homonymy, that new name is a junior objective synonym of Modiola contorta. However, Borchert's name is a primary junior homonym of Modiola contorta Dujardin, 1837. As youngest available synonym, Diplodon fraus is consequently the valid name of the species. [details]
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