MolluscaBase name details
Io aenigmatica Bayan, 1870 †
1543920 (urn:lsid:marinespecies.org:taxname:1543920)
unaccepted > superseded combination
Species
fossil only
Bayan, F. (1870). Études faites dans la collection de l'École des Mines sur des fossiles nouveaux ou mal connus. Premier fascicule. Mollusques tertiaires. F. Savy, Paris, pp. 1-81, pl. 1-10., available online at https://books.google.com/books?id=trNGAQAAMAAJ
page(s): 4-5, pl. 6, figs 1, 2 [details]
page(s): 4-5, pl. 6, figs 1, 2 [details]
Note Roncà, Prov. Verona, Italy
From editor or global species database
Type locality Roncà, Prov. Verona, Italy [details]
Status According to Wenz (1929) the systematic position is unclear and the species probably does not belong in the genus. It might...
Status According to Wenz (1929) the systematic position is unclear and the species probably does not belong in the genus. It might not even be a freshwater taxon. [details]
MolluscaBase eds. (2025). MolluscaBase. Io aenigmatica Bayan, 1870 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1543920 on 2025-09-11
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original description
Bayan, F. (1870). Études faites dans la collection de l'École des Mines sur des fossiles nouveaux ou mal connus. Premier fascicule. Mollusques tertiaires. F. Savy, Paris, pp. 1-81, pl. 1-10., available online at https://books.google.com/books?id=trNGAQAAMAAJ
page(s): 4-5, pl. 6, figs 1, 2 [details]
redescription Bayan, F. (1870). Sur les terrains tertiaires de la Vénétie. <em>Bulletin de la Société Géologique de France.</em> ser. 2, 27: 444-486.
page(s): 476; note: precedence unknown to the editor [details]
status source Wenz, W. (1923-1930). Fossilium Catalogus I: Animalia. Gastropoda extramarina tertiaria. W. Junk, Berlin. Vol. I: 1-352 pp. (1923), Vol. II: 353-736 pp. (1923), Vol. III: 737-1068 pp. (1923), Vol. IV: 1069-1420 pp. (1923), Vol. V: 1421-1734 pp. (1923), Vol. VI: 1735-1862 pp. (1923), Vol. VII: 1863-2230 pp. (1926), Vol. VIII: 2231-2502 pp. (1928), Vol. IX: 2503-2886 pp. (1929), Vol. X: 2887-3014 pp. (1929), Vol. XI: 3015-3387 pp. (1930)., available online at http://biodiversitylibrary.org/bibliography/61839#/summary
page(s): 2634 [details]
page(s): 4-5, pl. 6, figs 1, 2 [details]
redescription Bayan, F. (1870). Sur les terrains tertiaires de la Vénétie. <em>Bulletin de la Société Géologique de France.</em> ser. 2, 27: 444-486.
page(s): 476; note: precedence unknown to the editor [details]
status source Wenz, W. (1923-1930). Fossilium Catalogus I: Animalia. Gastropoda extramarina tertiaria. W. Junk, Berlin. Vol. I: 1-352 pp. (1923), Vol. II: 353-736 pp. (1923), Vol. III: 737-1068 pp. (1923), Vol. IV: 1069-1420 pp. (1923), Vol. V: 1421-1734 pp. (1923), Vol. VI: 1735-1862 pp. (1923), Vol. VII: 1863-2230 pp. (1926), Vol. VIII: 2231-2502 pp. (1928), Vol. IX: 2503-2886 pp. (1929), Vol. X: 2887-3014 pp. (1929), Vol. XI: 3015-3387 pp. (1930)., available online at http://biodiversitylibrary.org/bibliography/61839#/summary
page(s): 2634 [details]
Present Inaccurate Introduced: alien Containing type locality
