Fig. 16 in Earliest Jurassic patellogastropod, vetigastropod, and neritimorph gastropods from Luxembourg with considerations on the Triassic-Jurassic faunal turnover

Fig. 16. Trochotomid and turbinid gastropods from Brouch (Mersch, Grand−Duchy of Luxembourg), Late Hettangian (Schlotheimia angulata Zone, Schlotheimia complanata Subzone), Early Jurassic. A. Trochotoma clypeus Terquem, 1855, MNHNL BR305−1, lateral (A1), apical (A2), and dorsal (A3) views. The arrow indicates the position of the selenizone. B, C. Meiersia disarmata sp. nov. B. Holotype, MNHNL BR358, apertural (B1), dorsal (B2), basal (B3), and apical views. C. Paratype, MNHNL BR873, apical (C1), basal (C2), and dorsal (C3) views.