Ampullina, Bowdich, 1822

Islamoğğlu, Yeşşim, Dominio, Stefano & Kowalke, Thorsten, 2011, Early Eocene Caenogastropods (Mollusca, Gastropoda) from Haymana-Polatl Basin, Central Anatolia (Turkey): taxonomy and palaeoecology, Geodiversitas 33 (2), pp. 303-330 : 309-310

“ Ampullina ” cf. vulcani ( Brongniart, 1823) ( Fig. 5C, D )

Ampullaria vulcani Brongniart, 1823: 57 , pl. 2, fig. 16a, b.

Natica (Ampullina) vulcaniformis Oppenheim, 1896: 174 , pl. 16, figs 4, 4a.

Globularia (Globularia) vulcani – Karagiuleva 1964: 175, 176; pl.49, fig. 4a-c.

Ampullina vulcani – Brigantini 1985: 411, 412; pl. 2, fig. 14. — Klepač 2003: 336, 337; pl. 64.

MATERIAL EXAMINED. — Four specimens, MTA- Y. İ.-2007 -06 to 11.

LOCALITY AND HORIZON. — Grey siltstone-mudstone, KIrkkavak Formation (Macunköy: samples G1, G2, G3).

PALAEOGEOGRAPHIC DISTRIBUTION. — Paris Basin: Late Eocene; Bulgaria: Late Eocene ( Karagiuleva 1964); N Africa: Middle-Late Eocene; Croatia (Island of Krk): Late Cuisian-Early Lutetian ( Klepač 2003); Monte Postale (N Italy): Eocene ( Oppenheim 1896).

DESCRIPTION

Spire whorls are slightly rounded, separated by deep suture lines. Last whorl is rounded and strongly convex. It takes up to more than ¾ of the shell height. The rate of LT/HT is between 0.82-0.85 and LT/D1 is 1.15-1.16 (Appendix 1).

REMARKS

By comparison of our material with the type material deposited in the collections of the MNHN, the specific features of the investigated specimens match those of “ Ampullina ” vulcani ,differing from the morphology of “ A. ” cf. vapincana by a shorter last whorl, less globular shape and slightly convex, shorter spire whorls.

Figures

FIG. 5. — Caenogastropods (deposited in the repositories of the General Directorate of Mineral Research and Exploration, Ankara): A, B, N, “Ampullina” cf. vapincana (d’Orbigny, 1850); C, D, “Ampullina” cf. vulcani (Brongniart, 1823); E, F, “Ampullinid” indet.; G, Campanile giganteum (Lamarck, 1804); H-K, Cerithium puigcercosensis (Cossmann, 1897) n. comb.; L, M, “Crommium” sp. 1. Scale bars: 1 cm.