Phoxinus 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 Phoxinus Rafinesque, 1820

aff. Phoxinus sp.

Fig. 30 .

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

Description.—The general shape is rounded with the posterior portion tapering. Similar to lapilli of Recent Phoxinus phoxinus ( Fig. 16 ), the antero− and the posterolateral edges are pointed and thus more prominent than the rounded antero − and posteromedial edges. In addition, the fossil lapilli present a slight concavity of the posterior margin, which makes them resemble lapilli of Recent Ph. phoxinus . However, the fossil lapilli are distinctly thicker than those from the Recent species.

Figures

Fig. 30. Oligocene aff. Phoxinus sp. from Switzerland. A–F. BSPG 2003 XVIII 68–73 respectively, from La Morges 161 (A–D) and 70 (E, F) in dorsal views, represented as right lapilli (A–E 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. 16. Utricular otoliths (lapilli) of Recent Phoxinus phoxinus (Linnaeus, 1758) from wild catches in Germany. A. BSPG 2003 IV 91 represented as right lapillus in dorsal (A1) and anterior (A2) views. B. BSPG 2003 IV 95 in dorsal view, represented as right lapillus, mirrored (B1) and in anterior view, represented as left lapillus (B2). C, D. BSPG 2003 IV 94b and 94a respectively, in ventral views, represented as left lapilli (D mirrored). C, D display a lapilli pair. SEM−pictures.