Proposing a solution to the Articulata–Ecdysozoa controversy

  title={Proposing a solution to the Articulata–Ecdysozoa controversy},
  author={Claus Nielsen},
  journal={Zoologica Scripta},
  • C. Nielsen
  • Published 1 September 2003
  • Biology
  • Zoologica Scripta
Recent studies of animal radiation agree on monophyly of the Bilateria, but there is no consensus about the early radiation of the group. Protostomia and Deuterostomia are usually recognized, with two competing theories regarding the division of the Protostomia: one divides them into Spiralia and Cycloneuralia, the other into Lophotrochozoa and Ecdysozoa. The main discrepancy concerns the Arthropoda, which are placed with the Articulata within the Spiralia by the first group, and with the… 

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