Fig. 13 in Earliest Jurassic patellogastropod, vetigastropod, and neritimorph gastropods from Luxembourg with considerations on the Triassic-Jurassic faunal turnover

Fig. 13. Ptychomphalid gastropod Ptychomphalus caepa (Eudes−Deslongchamps, 1849) from Brouch (Mersch, Grand−Duchy of Luxembourg), Late Hettangian (Schlotheimia angulata Zone, Schlotheimia complanata Subzone), Early Jurassic. A. MNHNL BR213−1, apertural (A1), lateral (A2), dorsal (A3), basal (A4), and apical (A5) views. B. MNHNL BR810−1, apertural (B1), basal (B2), apical (B3), and dorsal (B4) views. C. MNHNL BR826−1, dorsal view. D. MNHNL BR213−2, dorsal (D1), apical (D2), basal (D3), and apertural (D4) views.