Late Jurassic (Upper Kimmeridgian) gastropods from Saal near Kelheim (Germany, Bavaria) Author Gründel, Joachim Institut für Geowissenschaften, Fachrichtung Paläontologie, Freie Universität Berlin, Malteserstraße 74 – 100, 12249 Berlin, Germany Author Nützel, Alexander 0000-0002-8852-7688 SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Str. 10, 80333 München, Germany & Department of Earth and Environmental Sciences, Paleontology and Geobiology, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, 80333 München, Germany text Zitteliana 2024 2024-12-11 98 19 72 journal article 10.3897/zitteliana.98.e138605 9FB6F185-9EA1-48EB-A5C9-632BD52A8B6F Heliacanthus sp. 1 Plate 3 : figs 14–15, Plate 4: Fig. 1 Material. 4 specimens , SNSB – BSPG 2016 XXI 1726 –1729. Description. Shell broadly turbiniform with gradate spire; largest specimen 20 mm wide; first recognizable sculpture is a distinct edge situated high on whorl face which separates an approximately horizontal ramp from a vertical abapical part; subsutural spiral cord; two spiral cords appear on either side of edge; orthocline, bulging, blurred axial ribs run from suture to suture; nodules at intersections of axial ribs with subsutural spiral cord and edge; nodes have a pit in apertural direction; base phaneromphalous, slightly convex with angular transition to whorl face; base is covered with 5–6 relatively weak spiral cords in the outer area and three strong nodular spiral ribs near center; all weaker spiral cords are finely crenulated; axial ribs very weak on base; aperture not preserved. Plate 4. (1) Heliacanthus sp. 1 , SNSB–BSPG 2016 XXI 1726 , basal view, width 12 mm. (2–6) Heliacanthus ? sp. 2, SNSB–BSPG 2016 XXI 1730 , (2, 5) lateral and apical view, width 20 mm, (3) apex in lateral view, height 11 mm, (4) shell detail in lateral view, height 11 mm, (6) detail apical view, width 15 mm. (7) Heliacanthus ? sp. 2, SNSB–BSPG 2016 XXI 1731 , apertural view, height of aperture 19 mm. (8–11) Nododelphinulidae ? gen. and sp. indet., SNSB–BSPG 2016 XXI 1731 , (8, 10) lateral and lapical views, width of specimen 17 mm, (9) apex in lateral view, height 10 mm, (11) detail of base, width 14 mm. (12, 13) Creniturbo gibbosus sp. nov. (specimen lost), collection Lang, apical and lateral views. (14, 15) Creniturbo gibbosus sp. nov. , holotype, SNSB–BSPG 2016 XXI 1738 , (collection Lang), oblique basal and lateral views, width 6.5 mm. Remarks. ? Nododelphinula sp. sensu Hägele (1997) is smaller, lacks clear axial ribs, the bordering spiral cord at the transition to the base lacks nodes, on the base there is only a hump-shaped spiral cord that surrounds the umbilicus. Heliacanthus epulus (d’Orbigny) sensu Hägele (1997) has smaller and more numerous nodes on the edge, while it lacks a reinforced spiral cord with larger nodes at the transition to the base. Metriomphalus ( Metriacanthus ) rugosus (Buv.) sensu Fischer and Weber (1997) lacks axial ribs, the nodes on the edge at the transition to the base are larger and less numerous, and its base lacks strong and nodular spiral cords.