Evolution of the cephalopod head complex by assembly of multiple molluscan body parts: Evidence from Nautilus embryonic development

@article{Shigeno2008EvolutionOT,
  title={Evolution of the cephalopod head complex by assembly of multiple molluscan body parts: Evidence from Nautilus embryonic development},
  author={Shuichi Shigeno and Takenori Sasaki and Takeya Moritaki and Takashi Kasugai and Michael Vecchione and Kiyokazu Agata},
  journal={Journal of Morphology},
  year={2008},
  volume={269}
}
Cephalopod head parts are among the most complex occurring in all invertebrates. [] Key Method Using a specialized aquarium system, we successfully obtained a series of developmental stages that enabled us to test previous controversial scenarios. Our results demonstrate that the embryonic organs exhibit body plans that are primarily bilateral and antero-posteriorly elongated at stereotyped positions. The distinct cephalic compartment, foot, brain cords, mantle, and shell resemble the body plans of…

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