Graecoanatolica? sp.

Neubauer, Thomas A. & Wesselingh, Frank P., 2023, The Early Pleistocene freshwater mollusks of the Denizli Basin (Turkey): a new long-lived lake fauna at the crossroads of Pontocaspian and Aegean-Anatolian realms, Zitteliana 97, pp. 53-88 : 53

Graecoanatolica? sp.

Fig. 6F-I

Material.

1 specimen (RGM 1365349) from sample 1.

Remarks.

At first glance, this shell reminds of Iraklimelania minutissima sp. nov. (see below) in terms of the very small, slender shell with convex whorls. However, the protoconch of Graecoanatolica ? sp. is higher, whorls are more regularly convex, the aperture is oblique in lateral view, and the umbilicus is clearly visible. In all these characteristics it closely resembles extant Graecoanatolica dinarica Kebapçı, Koca & Yıldırım, 2012, for which we have studied topotypical material from İncirlipınar in Afyonkarahisar region. That species differs from Graecoanatolica ? sp. in the larger size, the comparatively larger apex, the faster whorl expansion rate, and the often irregular growth ( Kebapçı et al. 2012). Yet, the growth lines of Graecoanatolica ? sp. are nearly orthocline, which has not been observed in any Graecoanatolica species, which is why we only tentatively associate the species with this genus.

Figures

Figure 6. Caspiinae (Hydrobiidae) of the Kolankaya I fauna. A-E. Graecoanatolica alcicekorum sp. nov., holotype, RGM 962617, sample 2. F-I. Graecoanatolica? sp., RGM 1365349, sample 1. Scale bars: 1 mm (1 - D, F, G); 100 μm (E, H, I).