Fig. 15 in Palaeoecology of tropical marine invertebrate assemblages from the Late Triassic of Misurina, Dolomites, Italy

Fig. 15. Caenogastropods Angulatella bizzarinii Nützel and Hausmann sp. nov. from Lago Antorno (A, B) and Misurina Landslide (C), northern Italy, Cassian Formation, Carnian, Upper Triassic. A. Paratype PZO 12826, specimen with preserved protoconch having bicarinate shell, in apertural view (A1); protoconch (A2–A5): A2, early whorls in lateral view inclucing bicarinate larval shell with axis oblique to teleoconch shell axis; A3, early whorls in oblique lateral view showing larval shell terminating at sinusigera; A4, close up of larval whorls with carinae ornamented with minute tubercles, in lateral view; A5, close up to show tuberculate micro-ornament on teleoconch whorl, upper portion shows sinusigera where larval shell end B. Paratype PZO 12827, relatively large specimen lacking protoconch, in lateral view. C. Holotype, PZO 12701, specimen with preserved protoconch having bicarinate shell, in apertural (C1) and apical (C3) views; C2, early whorls including bicarinate larval shell, in lateral view.图15 产自意大利北部晚三叠世卡尼阶卡西安组安托诺湖（A、B）与米苏里纳滑坡（C）的新腹足类（Caenogastropods）新种Angulatella bizzarinii Nützel et Hausmann, sp. nov.。A 副模标本（paratype）PZO 12826，为保存有胚壳（protoconch）的双棱壳标本，呈壳口视图（apertural view，A1）；胚壳组（A2~A5）：A2为侧视的早期螺层，可见其幼体壳的螺轴与成体壳（teleoconch）螺轴呈斜交；A3为斜侧视的早期螺层，可见幼体壳终止于壳窦区（sinusigera）；A4为幼体螺层的特写，侧面观可见壳棱上饰有细小瘤点；A5为特写，展示成体螺层上的瘤状微饰，上部可见幼体壳终结的壳窦区。B 副模标本（paratype）PZO 12827，为体型相对较大且无胚壳的标本，呈侧视图（lateral view）。C 正模标本（holotype）PZO 12701，为保存有胚壳的双棱壳标本，分别呈壳口视图（C1）与顶视图（apical view，C3）；C2为侧视的早期螺层，包含双棱幼体壳。