Fig. 6 in Gladius shape variation in coleoid cephalopod Trachyteuthis from the Upper Jurassic Nusplingen and Solnhofen Plattenkalks

Fig. 6. Gladius of vampyropod coleoid Trachyteuthis teudopsiformis sp. nov. A. Holotype (G 1306061), Lower Tithonian (Hybonoticeras hybonotum Zone), Blumenberg. A1, gladius seen in dorsal aspect; mm, mantle musculature; A2, close−up of A1 showing the granules at the anterior half of the gladius; A3, close−up of A1 showing the granules at the posterior half of the gladius. B. Paratype (MB.C.1002.4), Lower Tithonian (Hybonoticeras hybonotum Zone), Daiting. B1, gladius seen in ventral aspect; B2, close−up of B1 showing imprints of dorsal granules. C. Counterpart of the paratype (PIMUZ17826), gladius seen in dorsal aspect.