MolluscaBase name details
Anisopsis Zilch, 1959 †
1258252 (urn:lsid:marinespecies.org:taxname:1258252)
unaccepted > junior objective synonym (junior objective synonym of Liangulorbis, with the same type species)
Genus
Planorbis calculus F. Sandberger, 1870 † accepted as Liangulorbis calculus (F. Sandberger, 1870) † (type by subsequent designation)
- Species Anisopsis calculus (F. Sandberger, 1870) † accepted as Liangulorbis calculus (F. Sandberger, 1870) † (unaccepted > superseded combination, genus is a junior objective synonym)
- Species Anisopsis cherusca Huckriede, 1967 † accepted as Liangulorbis cherusca (Huckriede, 1967) † (unaccepted > superseded combination, genus is a junior objective synonym)
- Species Anisopsis costata Youluo, 1978 † (unaccepted > unavailable name)
- Species Anisopsis minuta Yen, 1951 † accepted as Liangulorbis minuta (Yen, 1951) † (unaccepted > superseded combination, genus is a junior objective synonym)
fossil only
feminine
Zilch, A. (1959-1960). Gastropoda. Teil 2. Euthyneura. In: Schindewolf, O. H. (Ed.), Handbuch der Paläozoologie, Band 6. Borntraeger, Berlin. Lfg. 1: pp. 1-200 (17 July 1959); Lfg. 2: pp. 201-400 (25 November 1959); Lfg. 3: pp. 401-600 (30 March 1960); Lfg. 4: pp. 601-834, I-XII (15 August 1960).
page(s): 118 [details] Available for editors
[request]
page(s): 118 [details] Available for editors
[request]
Original description Zilch attributed the name to Sandberger [1875, Die Land- und Susswasser-Conchylien der Vorwelt: 958], who listed Anisopsis...
Original description Zilch attributed the name to Sandberger [1875, Die Land- und Susswasser-Conchylien der Vorwelt: 958], who listed Anisopsis in a list of subgenera of Planorbis, but did not provide a description. In that list, Sandberger did not explicitly include any species, but he marked the stratigraphic occurrence of the subgenus as “middle to late Jurassic”; the fact that he indicated Anisopsis to be the only subgenus of Planorbis for this period may be seen as implying that he considered the middle to late Jurassic Planorbis species in his monograph as belonging to Anisopsis. This is the case for P. calculus Sandberger, 1870, P. loryi Coquand, 1856 and P. coquandianus de Loriol, 1865. Baker (1945: 94) designated P. calculus Sandberger, 1870 as type species. [details]
MolluscaBase eds. (2025). MolluscaBase. Anisopsis Zilch, 1959 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1258252 on 2025-09-11
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original description
Zilch, A. (1959-1960). Gastropoda. Teil 2. Euthyneura. In: Schindewolf, O. H. (Ed.), Handbuch der Paläozoologie, Band 6. Borntraeger, Berlin. Lfg. 1: pp. 1-200 (17 July 1959); Lfg. 2: pp. 201-400 (25 November 1959); Lfg. 3: pp. 401-600 (30 March 1960); Lfg. 4: pp. 601-834, I-XII (15 August 1960).
page(s): 118 [details] Available for editors [request]
additional source Zilch, A. (1948). <em>Anisopsis</em> Sandberger 1875 und <em>Angulorbis</em> Wenz 1941 <em>Archiv für Molluskenkunde</em>. 76(4-6): 191-192
page(s): 191-192 [details]
page(s): 118 [details] Available for editors
[request]additional source Zilch, A. (1948). <em>Anisopsis</em> Sandberger 1875 und <em>Angulorbis</em> Wenz 1941 <em>Archiv für Molluskenkunde</em>. 76(4-6): 191-192
page(s): 191-192 [details]
From editor or global species database
Grammatical gender Under Art. 30.1.2, the gender of Anisopsis is feminine, but it was treated as masculine by Zilch. [details]Original description Zilch attributed the name to Sandberger [1875, Die Land- und Susswasser-Conchylien der Vorwelt: 958], who listed Anisopsis in a list of subgenera of Planorbis, but did not provide a description. In that list, Sandberger did not explicitly include any species, but he marked the stratigraphic occurrence of the subgenus as “middle to late Jurassic”; the fact that he indicated Anisopsis to be the only subgenus of Planorbis for this period may be seen as implying that he considered the middle to late Jurassic Planorbis species in his monograph as belonging to Anisopsis. This is the case for P. calculus Sandberger, 1870, P. loryi Coquand, 1856 and P. coquandianus de Loriol, 1865. Baker (1945: 94) designated P. calculus Sandberger, 1870 as type species. [details]
