Zeilleria cf. waterhousi ( Davidson, 1851 )

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 36-37

Zeilleria cf. waterhousi ( Davidson, 1851)

(Figs 86–88)

* 1851 Terebratula Waterhousii, Dav. – DAVIDSON, Oolitic and Liasic, p. 31, pl. V, figs 12, 13.

1869 Terebratula Waterhousi (Davidson) . – DUMORTIER, Bassin du Rhône, p. 324, pl. XLI, figs 11, 12. 2012 Zeilleria waterhousi ( Davidson 1851) – HÖFLINGER, Deutsch. Lias, p. 169 + fig. (unnumbered). v 2014 Zeilleria cf. waterhousi ( Davidson, 1851) – VÖRÖS, Yakacik, p. 243, pl. II, fig. 6.

Material – One moderately preserved specimen from Çalık (Gümüşhane area), Lower Pliensbachian .

Measurements –

L W T Ch

INV 2014.120. 14.6 11.0 5.8 – Remarks – In the identification of this species the comprehensive synthesis on zeilleriids by DELANCE (1974) and the monographs by ALMÉRAS & FAURÉ (2000, 2013) have been taken into account. In the original concept by DAVIDSON (1851) T. waterhousi was characterized by gently sulcate anterior commissure. Later, by synonymizing the species subdigona (Oppel, 1853) the forms with straight anterior commissure were also included ( DELANCE 1974; ALMÉRAS & FAURÉ 2013). Our specimen shows gently strangulate, straight anterior commissure, therefore stands closer to the “ subdigona ”- type.

ANTOSHTCHENKO (1970) ranged this species into the genus Keratothyris Tuluweit, 1965 , but it was not accepted by DELANCE (1974) and later French authors, and this latter opinion is followed by the present author. Z. waterhousi was most frequently recorded in northwest Europe, but occurs also in the Crimea, the Balkans and Turkey; therefore, it seems to be cosmopolitan in distribution.