Fig. 9 in Orthoceratoid and coleoid cephalopods from the Middle Triassic of Switzerland with an updated taxonomic framework for Triassic Orthoceratoidea

Fig. 9 Lectotype and paralectotype of Trematoceras elegans (MÜnster, 1841) from the Carnian of the Cassian Formation. A, C SNSB-BSPG AS VII 1014, lectotype. B, D–F SNSB-BSPG AS VII 1015, paralectotype. A External (lateral?) view. B Apertural view. C Longitudinal section. D Apical view. E Lateral view, venter right. F Ventral view