Latest anomalocaridid affinities challenged

Georg Mayer (), Christine Martin, Ivo de Sena Oliveira, Franziska Anni Franke and Vladimir Gross
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Georg Mayer: *Animal Evolution and Development, University of Leipzig, Talstraße 33, 04103 Leipzig, Germany
Christine Martin: *Animal Evolution and Development, University of Leipzig, Talstraße 33, 04103 Leipzig, Germany
Ivo de Sena Oliveira: *Animal Evolution and Development, University of Leipzig, Talstraße 33, 04103 Leipzig, Germany
Franziska Anni Franke: *Animal Evolution and Development, University of Leipzig, Talstraße 33, 04103 Leipzig, Germany
Vladimir Gross: *Animal Evolution and Development, University of Leipzig, Talstraße 33, 04103 Leipzig, Germany

Nature, 2014, vol. 516, issue 7530, E1-E2

Abstract: Abstract Arising from P. Cong, X. Ma, X. Hou, G. D. Edgecombe & N. J. Strausfeld Nature 513, 538–542 (2014); doi:10.1038/nature13486 Cong et al.1 report a new anomalocaridid species, Lyrarapax unguispinus, that bears a potential pair of pre-protocerebral ganglia associated with frontal appendages, thus challenging some previous assignments of these appendages to the second (deutocerebral) segment2,3. On the basis of putative similarities in brain anatomy to the extant onychophoran Euperipatoides rowelli, the authors go further by assigning homology between the anomalocaridid-like appendages and the arthropod labrum4. However, we demonstrate that their arguments are based on a misinterpretation of onychophoran neuroanatomy. Consequently, we believe that the proposed affinities of these appendages are incorrect and their homologues remain uncertain. There is a Reply to this Brief Communication Arising by Cong, P. et al. Nature 516, http://dx.doi.org/10.1038/nature13861 (2014).

Date: 2014
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DOI: 10.1038/nature13860

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