Reconstruction of Oligocene and Neogene freshwater fish faunas-an actualistic study on cypriniform otoliths Author Schulz-Mirbach, Tanja Author Reichenbacher, Bettina text Acta Palaeontologica Polonica 2006 51 2 283 304 journal article 10.5281/zenodo.13643922 1732-2421 13643922 Alburnoides bipunctatus ( Bloch, 1782 ) Fig. 6 . Material and dimensions .—See Table 2 . Description .—The general shape resembles a trapezium. All edges are strongly accentuated except the anterolateral edge, which is small and rounded. The anteromedial edge is extended robustly in some specimens ( Fig. 6D, E ). The medial margin is straight to slightly concave and runs somewhat oblique or parallel to the length of the lapillus. The posterior margin is concave, and the lateral margin is rounded.