Fig. 8 in An Early Triassic gladius associated with soft tissue remains from Idaho, USA-a squid-like coleoid cephalopod at the onset of Mesozoic Era

Fig. 8. Coleoid cephalopod Idahoteuthis parisiana Doguzhaeva and Brayard gen. et sp. nov. (holotype, UBGD 30545); middle Olenekian, Early Triassic; Idaho, USA. A. Canalicular cartilage of fin-supported structure. B–D. Cartilaginous mantle band-shape structure on dorsal side showing a canalicular type of cartilage.