Zeilleria cf. subnumismalis ( Davidson, 1851 )

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 38

Zeilleria cf. subnumismalis ( Davidson, 1851)

(Figs 92–94)

* 1851 Terebratula numismalis, Lamarck var. subnumismalis – DAVIDSON, Oolitic and Liasic, p. 36, 38, pl. V, fig. 10.

1869 Terebratula subnumismalis (Davidson) . – DUMORTIER, Bassin du Rhône, p. 326, pl. XLI, figs 8–9 (? 10).

1878 Waldheimia sub-numismalis, Dav. – DAVIDSON, Supplement, p. 62, pl. XXI, figs 1–7.

1885 Waldheimia (Zeilleria) subnumismalis, Dav. – PARONA, Saltrio e Arzo, p. 257, pl. V, figs 8–14.

1893 Waldheimia subnumismalis, Dav. – PARONA, Revisione Gozzano, p. 52, pl. I, fig. 26.

? 1926 Waldheimia subnumismalis Opp. – MOISSEIEV, Crimea, p. 980, pl. XXVIII, figs 34–36.

? 1934 Zeilleria subnumismalis Dav. E. Desl. – MOISSEIEV, Crimea and Caucasus, p. 131, 198, pl. XVII, figs 27–33.

1966 Zeilleria subnumismalis (Davidson, 1852) – SIBLÍK, Ramenon. Kostelec. bradla, p. 140, pl. II, fig. 1.

1974 Zeilleria (Zeilleria) subnumismalis ( Davidson 1851) – DELANCE, Zeilleridés, p. 202, pl. 3, figs 16, 17.

1990 Zeilleria (Zeilleria) subnumismalis ( Davidson 1851) – TCHOUMATCHENCO, Brach. jur. Kotel II, p. 24, text-fig. 14, pl. X, figs 6–11, pl. XI, figs 1–4.

2012 Zeilleria subnumismalis ( Davidson 1851) – HÖFLINGER, Deutsch. Lias, p. 166 + fig. (unnumbered).

Material – Five partly incomplete specimens from Beytepe (Ankara area), probably Pliensbachian.

Measurements –

L W T Ch

INV 2014.122. 34.5 31.6 21.4 –

Remarks – This species of Zeilleria was profusely and well illustrated by some classical authors (DAVIDSON 1878, l.c.; PARONA 1885, l.c.) and was exhaustively revised by DELANCE (1974). On this basis the identification of our specimens seems justified. Z. subnumismalis is a rather large, conservative form, with subcircular outline, moderate convexity and straight commissures. Some items of the above synonymy do not conform to these basic features, e.g. the specimen figured by MOISSEIEV (1926, l.c.) is too elongated; another item by MOISSEIEV (1934, l.c.) is too small; their attribution to Z. subnumismalis is questionable. This is a Pliensbachian species of the NW-European region but it was recorded also from the Alpine-Carpathian region, the Balkans (Kotel), perhaps from the Crimea and now from Turkey.