Aulacothyris anatolica (Vadász, 1913)

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 40

Aulacothyris anatolica (Vadász, 1913)

(Figs 101–103, 104–106)

v * 1913 a Waldheimia anatolica nov. f. – VADÁSZ, Kisázsia, p. 61, text-fig. 5.

v 1913 b Waldheimia anatolica nov. f. – VADÁSZ, Kleinasien, p. 69, text-fig. 6.

? 1926 Waldheimia (Aulacothyris) salgirensis n. sp. – MOISSEIEV, Crimea, p. 983, 993, pl. XXVIII, figs 40–42.

? 1934 Aulacothyris salgirensis Mois. – MOISSEIEV, Crimea and Caucasus, p. 153, 202, pl. XIX, figs 22–25.

1959 a Aulacothyris anatolica (Vadasz) – AGER, Turkey, p. 1025, pl. 129, fig. 1.

v 2014 Aulacothyris anatolica (Vadász, 1913) – VÖRÖS, Yakacik, p. 245, text-fig. 3, pl. II, fig. 11.

Material – Seven moderately preserved specimens from Günüviran (Bilecik area), Kösrelik Kızığı (Ankara area) and Çalık (Gümüşhane area), loose from Upper Sinemurian to Pliensbachian interval .

Measurements –

Remarks – This typical species of the genus Aulacothyris was first described by VADÁSZ (1913 a, b) from Yakacik ( Turkey), and a detailed revision of the same topotypical material was given recently by VÖRÖS (2014), including the demonstration of the internal morphology of A. anatolica . It was also shown that A. salgirensis introduced by MOISSEIEV (1926), was very similar externally and probably conspecific with A. anatolica . This view was strongly supported by the serial sections of A. salgirensis published by ANTOSHTCHENKO (1970, fig. 4), which are particularly similar to those of A. anatolica . Our species differs from A. resupinata (J. Sowerby, 1816) by its broad and shallow sulcus and that its greatest width is attained near the anterior end of the shell. From this point of view, A. anatolica is somewhat similar to A.? ballinensis (Haas, 1912; see in VÖRÖS 2009), but it is more elongated and its sulcus starts more posteriorly and is significantly deeper. A. anatolica was known only from Yakacik ( Turkey), but in the light of the new data presented here, it seems to be widespread in other parts of northern Anatolia.