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About: Xandarella     Goto   Sponge   NotDistinct   Permalink

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Xandarella is an extinct genus of artiopodan known from the Cambrian of China and Morocco, the type species Xandarella spectaculum was described in 1991 from the Cambrian Stage 3 aged Chengjiang Biota in China. An additional species Xandarella mauretanica was described from the Cambrian Stage 5 in Morocco in 2017, which preserved only the ventral anatomy. Like other Xandarellids, the exoskeleton is unmineralised. The cephalon has pronounced eye slits, presumably derived from ancestral ventral stalked eyes.