'Arm brains' (axial nerves) of Jurassic coleoids and the evolution of coleoid neuroanatomy
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Although patchy, the fossil record of coleoids bears a wealth of information on their soft part anatomy. Here, we describe remains of the axial nerve cord from both decabrachian (Acanthoteuthis, Belemnotheutis, Chondroteuthis) and octobrachian (Plesioteuthis, ... ...
