Cirpa fronto (Quenstedt, 1871)

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 16-17

Cirpa fronto (Quenstedt, 1871)

(Figs 5–7)

* 1871 [ Terebratula ] triplicata fronto – QUENSTEDT, Petrefactenkunde Deutschlands, p. 71, pl. 37, figs 177–183.

1934 Rhynchonella variabilis Dav. var. fronto Quenst. – MOISSEIEV, Crimea and Caucasus, p. 43, 178, pl. II, figs 30–33.

1959 b Cirpa fronto (Quenstedt) . – AGER, British Rhynchonellidae , p. 53, text-figs 29–30, pl. V, figs 1–3.

1964 Cirpa fronto (Quenstedt, 1871) – SIBLÍK, Belanska Dolina, p. 168, text-fig. 3, pl. VIII, figs 4–6.

? 2003 Cirpa fronto (Quenstedt, 1871) – DULAI, Hettangian and Early Sinemurian, p. 17, text-fig. 4, pl. II, figs 1–3.

? 2010 Cirpa fronto (Quenstedt, 1871) – ALMÉRAS et al., Massif Armoricain, p. 28, text-fig. 18, pl. 2, fig. 2, pl. 5, fig. 4.

v 2011 Cirpa fronto (Quenstedt, 1871) – VÖRÖS & KANDEMIR, Eastern Pontides, p. 353, fig. 4/1 (cum syn.).

2012 Cirpa fronto (Quenstedt 1871) – HÖFLINGER, Deutsch. Lias, p. 39 + fig. (unnumbered).

Material – One well preserved specimen from Kösrelik Kızığı (Ankara area), loose, from Sinemurian to Pliensbachian interval.

Measurements –

L W T Ch

INV 2014.93. 10.3 10.9 7.6 7.2 Remarks – This well-known and typical species of the genus Cirpa was recently figured and discussed by VÖRÖS & KANDEMIR (2011) from Turkey. The above synonymy contains more items but far from being complete. The specimen figured by DULAI (2003, l.c.) does not show the diagnostic flattened frontal region of C. fronto , therefore, that identification is queried. The same holds true for the record by ALMÉRAS et al. (2010, l.c.) where the ribbing is too much coarse and the anterior view is missing. This Pliensbachian species is cosmopolitan in distribution, occurring in Northwest Europe, the Alpine-Mediterranean region, in the Atlas Mts, the Crimea and Turkey.