Cuneirhynchia dalmasi ( Dumortier, 1869 )

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 26-28

Cuneirhynchia dalmasi ( Dumortier, 1869)

(Figs 39–41)

* 1869 Rhynchonella Dalmasi (Nov. spec.). – DUMORTIER, Bassin du Rhône, p. 331, pl. XLII, figs 3–5.

1962 Cuneirhynchia dalmasi (Dumortier) . – AGER, British Rhynchonellidae , p. 126, text-figs 77– 80, pl. XI, figs 4, 5.

2012 Cuneirhynchia dalmasi ( Dumortier 1869) – HÖFLINGER, Deutsch. Lias, p. 62 + fig. (unnumbered).

v 2014 Cuneirhynchia dalmasi ( Dumortier, 1869) – VÖRÖS, Yakacik, p. 238, pl. I, figs. 9, 10 (cum syn.) .

Material – Eleven variously preserved specimens from Yakacik and Kösrelik Kızığı (Ankara area) and Kelkit and Çalık (Gümüşhane area), from Sinemurian to Pliensbachian interval.

Measurements –

L W T Ch

INV 2014.103. 13.0 12.7 8.5 3.8 Remarks – This is the type species of the genus Cuneirhynchia with an outline close to an equilateral triangle, lateral commissures running near the extremely sharp ventral beak ridges. Further important characters are the very wide, low trapezoidal uniplication with sharp zig-zag deflections and the few, strong ribs, which appear only after a posterior smooth area. C. dalmasi is a Pliensbachian species cosmopolitan in distribution from the NW-European and Mediterranean regions to Turkey.