Fig. 12From: ‘Arm brains’ (axial nerves) of Jurassic coleoids and the evolution of coleoid neuroanatomyPlesioteuthis prisca (Rüppell, 1829), HT 73/152, Daiting (Germany), Tithonian Moernsheim Formation. a UV-light. b White light. c Interpretative sketchBack to article page