Liospiriferina alpina ( Oppel, 1861 )

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 33

Liospiriferina alpina ( Oppel, 1861)

(Figs 64–66, 67–69)

* 1861 Spiriferina alpina Opp. – OPPEL, Brachiopoden des unteren Lias, p. 541, pl. XI, fig. 5.

v 2009 Liospiriferina alpina ( Oppel, 1861) – VÖRÖS, Bakony, p. 112, pl. XII, fig. 2 (cum syn.).

non 2013 Liospiriferina alpina ( Oppel, 1861) – ALMÉRAS & COUGNON, Principaux genres, p. 30, pl. 2, fig. 6.

v 2014 Liospiriferina alpina ( Oppel, 1861) – VÖRÖS, Yakacik, p. 240, pl. I, fig. 14.

Material – Nine partly incomplete specimens from Günüviran (Bilecik area), Alacaatlı (Ankara area), Gökdere and Çalık (Gümüşhane area), Upper Sinemurian and Pliensbachian .

Measurements –

Remarks – This frequently cited and figured Alpine species of the genus Liospiriferina was recently discussed in detail by VÖRÖS (2009). L. alpina is easily identified on the basis of its circular outline, the simple, smooth biconvex valves, the straight anterior commissure and the elevated ventral beak with rather high, trigonal interarea. ALMÉRAS & COUGNON (2013, p. 30) suggested that the item L. alpina by VÖRÖS (2009) should be referred to L. hartmanni (Zieten, 1830) . However, this can not be accepted, because L. hartmanni clearly differs from L. alpina by having transversely elongated outline, uniplicate anterior commissure and massive dorsal umbo. The specimen figured by ALMÉRAS & COUGNON (2013, l.c.) does not correspond to the typical L. alpina because its anterior commissure is not straight but definitely uniplicate. L. alpina is a typical Sinemurian to Pliensbachian Alpine-Mediterranean species but it was rarely recorded also from NW-Europe, Algeria and Turkey.