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1 results

  • A possible vicissicaudatan arthropod from the Late Carboniferous Mazon Creek Lagerstätte

  • Victoria E. McCoy, Fabiany Herrera, Jack Wittry, Paul Mayer, James C. Lamsdell
  • Journal:
    Geological Magazine / Volume 162 / 2025
    Published online by Cambridge University Press:
    09 January 2025, e3
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  • The Vicissicaudata, a group of artiopods, originated and reached their highest diversity during the Cambrian period. However, relatively few vicissicaudatan species are known from the Paleozoic. Here we report a new species of vicissicaudatan arthropod, sister to the cheloniellids, from the Late Carboniferous Mazon Creek Lagerstätte. The two specimens preserve a small eyeless head, a trunk comprising seven tergites with wide pleural lobes, a narrower postabdomen bearing two long, posteriorly directed caudal appendages, and a short, shield-shaped telson. This new species not only extends the stratigraphic range of the Vicissicaudata into the Late Paleozoic but also represents an intermediate morphology between the cheloniellids and other vicissicaudatans.