Callospiriferina haueri ( Suess, 1854 )

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 32

Callospiriferina haueri ( Suess, 1854)

(Figs 60, 61–63)

* 1854 Spirifer Haueri Suess. – SUESS, Kössener Schichten, p. 52, pl. II, fig. 6.

v 1886 Sp. Haueri Suess 1854 – ROTHPLETZ, Vilser-Alpen, p. 162, pl. XIII, figs 1–5.

? 1934 Spiriferina ex gr. tumida Corroy. – MOISSEIEV, Crimea and Caucasus, p. 28, 175, pl. I, figs 26–28.

1934 Spiriferina haueri Suess. – MOISSEIEV, Crimea and Caucasus, p. 28, 175, pl. I, figs 29, 30, pl. II, figs 1–4.

1971 Spiriferina tumida (Buch) var. haueri Corroy – SUČIĆ-PROTIĆ, Mid. Lias. Brach. Yugosl. Carpatho-Balkanids (II), p. 52, pl. XIX, figs 1–4.

1990 Spiriferina haueri Suess, 1854 – TCHOUMATCHENCO, Brach. jur. Kotel II., p. 4 (pars), text-fig. 1, pl. I, figs 1, 5, 7 (? non figs 2, 4, 6), pl. II, figs 3–5 (? non figs 1, 2).

1999 Callospiriferina haueri ( Suess 1854) – SIBLÍK, Northern Calcareous Alps, p. 429, pl. 3, figs 2, 3.

2012 Callospiriferina haueri ( Suess 1854) – HÖFLINGER, Deutsch. Lias, p. 95 + fig. (unnumbered).

Material – Three fragmentary specimens from Beytepe and Alacaatlı (Ankara area), probably Pliensbachian.

Measurements –

Remarks – This is a large Callospiriferina with laterally expanded oval to subtrigonal outline. The hinge margin is straight and very wide, its length attains the whole width of the shell, and protrudes from the outline. The valves are almost equally convex. The dorsal valve is more inflated posteriorly. The ventral umbo is wide, very high and strongly apsacline. The interarea is a little wider than high and almost flat. The dorsal umbo is well developed. The lateral commissures are poorly preserved. The anterior commissure is highly uniplicate forming a narrow, rather sharp, unbroken arch. The linguiform extension is distinctly protracted anterodorsally. The lateral flanks of the valves are covered by 7 to 9 strong but blunt ribs; the central fold and sulcus are smooth.

C. haueri is well-documented by classical authors ( SUESS 1854; ROTHPLETZ 1886) and our specimens from the Ankara area fit well to these illustrations. The specimen illustrated by MOISSEIEV (1934, pl. I, figs 26–28) as Spiriferina ex gr. tumida Corroy seems rather similar to C. haueri . From among the numerous specimens illustrated by TCHOUMATCHENCO (1990) as haueri , some items are queried in the above synonymy because their figures are of very poor quality, or they are almost smooth. This species has a cosmopolitan distribution from the Alpine region to Turkey and from the Hettangian to the Pliensbachian.