Fig. 9From: Pseudoinversion of septal sutures in Middle Jurassic–Lower Cretaceous non-heteromorph ammonitesCraspedites (Trautscholdiceras) milkovensis (Strem.), showing both sutural asymmetry and weak transitional pseudinversion, Upper Volgian, Nodiger Zone, Kashpir, Samara region, specimen no. PIN 3684/5477, a, c—lateral views, b—ventral view; scale bar = 1 cmBack to article page