Linguithyris aspasia ( Zittel, 1869 )

Vörös, A., 2014, Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey), Fragmenta Palaeontologica Hungarica 31, pp. 7-49 : 35-36

Linguithyris aspasia ( Zittel, 1869)

( Figs 76 , 77–79 , 80–82, 83–85)

v * 1869 Terebratula Aspasia. Menegh. – ZITTEL, Central-Appenninen, p. 126, pl. XIV, figs 1–4.

v 2009 Linguithyris aspasia ( Zittel, 1869) – VÖRÖS, Bakony, p. 169, text-figs 96–104, pl. XXIV, figs 5–13, pl. XXV, figs 1–11, pl. XXVI, figs 1–6 (cum syn.).

2012 Linguithyris aspasia (Meneghini 1853) – HÖFLINGER, Deutsch. Lias, p. 144 + fig. (unnumbered).

2013 Linguithyris aspasia ( Zittel, 1869) – BAEZA-CARRATALÁ, Subbetic, p. 84, fig. 5/10.

v 2014 Linguithyris aspasia ( Zittel, 1869) – VÖRÖS, Yakacik, p. 242, pl. II, fig. 5.

Material – Four specimens of various state of preservation from Günüviran (Bilecik area) and Hasanoğlan (Ankara area), loose from Upper Sinemurian to Pliensbachian interval .

Measurements –

Remarks – This species was profusely illustrated and exhaustively discussed by VÖRÖS (2009) and the identification of our specimens is beyond doubt. It is worth mentioning that all Turkish specimens, including those figured by AGER (1959 a, 1991) and VÖRÖS (2014) represent the isometric variants of L. aspasia ; they did not reach the bilobate growth stage. Nevertheless, they definitely belong to L. aspasia , what is further supported by the internal features illustrated by AGER (1991, fig. 2) and by the present paper ( Fig. 76 ). Both series of cross sections show the reduced hinge plates, the indistinct crural bases, triangular in cross section and the simple loop with arched transverse band. One specimen figured by TCHOUMATCHENCO (1990, pl. VII, fig. 3) from Kotel, may represent a juvenile L. aspasia . This is a long-ranging species, from the Sinemurian to the early Toarcian.

Its frequent occurrence in the lower Pliensbachian of the Mediterranean region initiated the classical term “Strati con T.aspasia ”. Later on, the geographical distribution of this species was proved to extending to a wider area, including North Africa and Turkey.

Figures

Fig. 76. Linguithyris aspasia (Zittel, 1869). Nine transverse serial sections through the posterior part of a specimen from Bilecik, Günüviran (Turkey), loose from Upper Sinemurian to Carixian interval, INV 2014.119.Distances from posterior end of the shell are given in mm. Original length of the specimen was 11.0 mm. (The umbonal part of the ventral valve was seriously damaged)

Figs 77–79. Linguithyris aspasia (Zittel, 1869), INV 2014.116., Günüviran, Sinemurian to Pliensbachi- an, 77 = dorsal view, 78 = anterior view, 79 = lateral view. – Figs 80–82. Linguithyris aspasia (Zittel, 1869), INV 2014.117., Günüviran, Sinemurian to Pliensbachian, 80 = dorsal view, 81 = anterior view, 82 = lateral view. – Figs 83–85. Linguithyris aspasia (Zittel, 1869), INV 2014.118., Hasanoğlan, Pliensbachian, 83 = dorsal view, 84 = anterior view, 85 = lateral view. – Figs 86–88. Zeilleria cf. waterhousi (Davidson, 1851), INV 2014.120., Çalık, Pliensbachian, 86 = dorsal view, 87 = anterior view, 88 = lateral view. – Figs 89–91. Zeilleria cf. lycetti (Davidson, 1851), INV 2014.121., Kösrelik Kızığı, Sinemurian to Pliensbachian, 89 = dorsal view, 90 = anterior view, 91 = lateral view. – Figs 92–94. Zeilleria cf.subnumismalis (Davidson, 1851), INV 2014.122., Beytepe, Pliensbachian,92 = dorsal view, 93 =anterior view, 94=lateral view.– Figs95–97. Zeilleria cf.mutabilis (Oppel,1861),INV 2014.123., Kösrelik Kızığı, Sinemurian to Pliensbachian, 95 = dorsal view, 96 = anterior view, 97 = lateral view. – Figs 98–100. Aulacothyris resupinata (J. Sowerby, 1816), INV 2014.124., Günüviran, Sinemurian to Pliensbachian, 98 = dorsal view, 99 = anterior view, 100 = lateral view. – Figs 101–103. Aulacothyris anatolica (Vadász, 1913), INV 2014.125., Günüviran, Sinemurian to Pliensbachian, 101 = dorsal view, 102 = anterior view, 103 = lateral view. – Figs 104–106. Aulacothyris anatolica (Vadász, 1913), INV 2014.126., Kösrelik Kızığı, Sinemurian to Pliensbachian, 104 = dorsal view, 105 = anterior view, 106 = lateral view. – Figs 107–109. Bakonyithyris cf. apenninica (Zittel, 1869), INV 2014.127., Alacaatlı, Pliensbachian,107 =dorsalview,108=anteriorview,109 =lateralview.– Figs110–112.Cinctanumismalis (Lamarck,1819),INV 2014.128., Alacaatlı,Pliensbachian,110 =dorsal view,111 =anterior view, 112 =lateralview.– Figs 113–115. Fimbriothyriscf.guerangeri(Deslongchamps,1856),INV 2014.129., Yakacik, Pliensbachian, 113 = dorsal view, 114 = anterior view, 115 = lateral view. (All figures are in natural size.Specimens have beencoated withammonium chloridebefore photography.)