Traits taxon details
original description
(of Arion (Letourneuxia) indifferens O. Boettger, 1884 †) Boettger, O. (1884). Fossile Binnenschnecken aus den untermiocänen <i>Corbicula</i>-Thonen von Niederrad bei Frankfurt (Main). <em>Bericht der Senckenbergischen Naturforschenden Gesellschaft.</em> 1883/1884, 258-280., available online at https://www.biodiversitylibrary.org/page/32027332 page(s): 258-259, pl. 4, fig. 1a-d [details]
basis of record
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): 352 [details]
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