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Abstract The passendorferiine perisphinctid ammonite genus Graefenbergites Schairer & Schlampp, 2003 is recorded for the first time from the Upper Jurassic of Baden-Württemberg. It is represented by a well-preserved phragmocone of a macroconch from the semimammatum Horizon (Hypselum Zone) of the Plettenberg quarry near Balingen. The specimen cannot be accurately referred to one of the two nominal species. Since it shares more characters with G. arancensis (Meléndez, 1989) than with G. idoceroides (Dorn, 1930), it is tentatively assigned to G. cf. arancensis (Meléndez, 1989). The new record closes a biogeographic gap, since the genus Graefenbergites, which is typical of the Submediterranean upper Oxfordian (Grossouvrei to Semimammatum subzones), was hitherto only recorded from the Jurassic of Franconia, Spain, France, and Poland. Its palaeogeographic distribution and biochronological significance are briefly discussed.

First record of the ammonite genusGraefenbergites(Perisphinctoidea: Passendorferiinae) from the late Oxfordian of the Swabian Alb (SW Germany)