genus C

Korn, Dieter & Ghaderi, Abbas, 2025, Late Permian nautiloids from Julfa (NW Iran), European Journal of Taxonomy 1018, pp. 1-113 : 63

New genus C Korn & Hairapetian (in press) sp.

Fig. 33 ; Table 19

Material examined

IRAN – East Azerbaijan • 1 specimen; Zal; Zal Member of the Ali Bashi Formation (early Changhsingian); 2018; Ghaderi leg.; illustrated in Fig. 33 ; MB.C.32059 .

Description

Specimen MB.C.32059 is a fragment of a conch with a diameter of about 125 mm ( Fig. 33A ). It is vertically distorted and only allows the study from one side; the conch dimensions and ratio can only be estimated. It bears a coarse sculpture consisting of eleven rounded ribs on half a volution. These ribs extend with a concave sinus across the flank; they are particularly strongly developed in the ventrolateral region.

Remarks

The single fragmentary specimen does not provide sufficient data for a clear characterisation. It is thus kept in open nomenclature.

Figures

Fig. 33. New genus C to be described by Korn & Hairapetian (in press) sp., specimen MB.C.32059 (Ghaderi 2018 Coll.) from the Zal Member of the Ali Bashi Formation at Zal. A. Lateral view. B. Reconstruction of apertural view. Scale bar units =1 mm.