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Cindarella and the arachnate clade Xandarellida (Arthropoda, Early Cambrian) from China

  • Lars Ramsköld (a1), Chen Junyuan (a2), Gregory D. Edgecombe (a3) and Zhou Guiqing (a2)

Abstract

Cindarella eucalla Chen et al. from the Early Cambrian Chengjiang fauna is the closest relative of Xandarella spectaculum Hou et al. Cindarella and Xandarella are united as Xandarellida, a further component of Cambrian arachnate diversity. Diagnostic of Xandarellida are ventral eyes, a posterior extension of the head shield that covers anterior trunk segments, and multiple somites per tergite in the rear part of the trunk. Somites and tergites are decoupled throughout the trunk in Cindarella. The bilobate structure of the exopod in xandarellids is widespread throughout the Arachnata.

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Cindarella and the arachnate clade Xandarellida (Arthropoda, Early Cambrian) from China

  • Lars Ramsköld (a1), Chen Junyuan (a2), Gregory D. Edgecombe (a3) and Zhou Guiqing (a2)

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