Late Jurassic (Upper Kimmeridgian) Heterobranchia (Gastropoda) of the coral-facies of Saal near Kelheim and the viciniy of Nattheim (Germany) Author Gruendel, Joachim Institut fuer Geowissenschaften, Fachrichtung Palaeontologie, Freie Universitaet Berlin, Malteserstrasse 74 - 100, 12249 Berlin, Germany joachim.gruendel@lingua-pura.de Author Keupp, Helmut Institut fuer Geowissenschaften, Fachrichtung Palaeontologie, Freie Universitaet Berlin, Malteserstrasse 74 - 100, 12249 Berlin, Germany Author Lang, Fritz Drosselweg 16, 96114 Hirschaid, Germany Author Nuetzel, Alexander https://orcid.org/0000-0002-8852-7688 SNSB-Bayerische Staatssammlung fuer Palaeontologie und Geologie, Richard-Wagner-Str. 10, 80333 Muenchen, Germany & Department of Earth and Environmental Sciences, Paleontology and Geobiology, Ludwig-Maximilians-Universitaet Muenchen, Richard-Wagner-Str. 10, 80333 Muenchen, Germany text Zitteliana 2022 2022-12-12 96 179 221 http://dx.doi.org/10.3897/zitteliana.96.e84187 journal article http://dx.doi.org/10.3897/zitteliana.96.e84187 2747-8106-96-179 35B619086E6548B09A177281C2253391 FE0861D71BB454999EE6637C0D9B2B0C Nerinella? sp. 1 Plate 15: figs 13-15 Material. One specimen from Saal, collection Lang, SNSB-BSPG 2021 XV 78. Description. The specimen is 45 mm high and has a moderately broad shape. The whorls increase regularly in width. They are distinctly wider than high. The sutures are hardly visible. The whorls are ornamented with three spiral cords. The subsutural spiral cord is the most prominent one. All spiral cords bear small knobs. The largest knobs are on the subsutural spiral cord. In the last whorls, the knobs on the middle and suprasutural spiral cord become weaker. The base is flat and has an angular transition to the whorl face which is demarcated by a spiral cord that is probably not knobby. The growth lines on the base are prosocyrt. The aperture is not preserved. Only a strong palatal plait can be recognized. Relationships. Aphanoptyxis polyspira (Quenstedt) sensu Haegele (1997) has spiral cords of equal strength on the whorl face, the aperture lacks plaits, and the ornament does not become weaker during ontogeny. Nerinea nodospira Quenstedt, 1881-1884 has four spiral cords on the whorl face, the knobby ornament is stronger, and the ornament does not become weaker during ontogeny. Nerinea punctata Voltz sensu Bronn (1836) has a weak ramp so that the whorls are well separated from each other and its ornament does not become weaker during ontogeny.