Rutilus Rafinesque, 1820

Schulz-Mirbach, Tanja & Reichenbacher, Bettina, 2006, Reconstruction of Oligocene and Neogene freshwater fish faunas-an actualistic study on cypriniform otoliths, Acta Palaeontologica Polonica 51 (2), pp. 283-304 : 299

Genus Rutilus Rafinesque, 1820 vel genus Scardinius Bonaparte, 1837

aff. Rutilus sp. vel aff. Scardinius sp.

Fig. 31 .

Material, dimensions and stratigraphic range.—See Tables 1 and 4, and Fig. 32 .

Description.—The lapilli are relatively wide and display a general shape that is trapezoid in the posterior portion and rounded to semicircular in the anterior portion. The pronounced anterolateral and anteromedial edges are situated more or less opposite to each other, and include the maximal width of the lapillus. Considering the shape and the edges, the fossil lapilli are comparable with Recent Rutilus rutilus and Scardinius erythrophthalmus (see Figs. 18, 19 ), except for their posterior margin, which is distinctly shorter and in some specimens slightly rounded. Another typical character of the fossil lapilli is the obliquely running medial margin with a more or less prominent posteromedial edge that includes an angle of about Ẑ 90°.

Figures

Fig. 31. Middle Miocene aff. Rutilus sp. vel aff. Scardinius sp. A. BSPG 2003 XVIII 74 from Goldberg/Ries (Germany) in dorsal view, represented as right lapillus. B–D. BSPG 2003 XVIII 75–77 respectively, from Le Locle (Switzerland) S3/19.0–21.3 m (B) and S3/16.4–16.6 m (C, D) in dorsal views, represented as right lapilli (C, D mirrored). SEM−pictures.

Fig. 32. Stratigraphic range of the lapilli−based fossil cyprinid species of the present study. Stratigraphic scale after Gradstein et al. (2004).

Fig. 19. Utricular otoliths (lapilli) of Recent Scardinius erythrophthalmus (Linnaeus, 1758) from wild catches in Germany. A. BSPG 2003 IV 165 in dorsal view, represented as right lapillus, mirrored. B. BSPG 2003 IV 116 represented as right lapillus in dorsal (B1) and anterior (B2) views. C. BSPG 2003 IV 115 in ventral view, represented as left lapillus. All SEM−pictures.