Morphological description, character conceptualization and the reconstruction of ancestral states exemplified by the evolution of arthropod hearts

• Torben Göpel ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: torben.goepel@googlemail.com

  Affiliation Allgemeine & Spezielle Zoologie, Institut für Biowissenschaften, Universität Rostock, Rostock, Germany

  http://orcid.org/0000-0002-6726-6319

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• Christian S. Wirkner

  Roles Conceptualization, Investigation, Methodology, Resources, Supervision, Visualization, Writing – review & editing

  Affiliation Allgemeine & Spezielle Zoologie, Institut für Biowissenschaften, Universität Rostock, Rostock, Germany

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