• Robert L. Carlton


a genus of early pteraspidomorph craniates in the order Arandaspidiformes, closely related to Arandaspis and among the earliest whole-body specimens of ostracoderms. Jawless and 10 inches long, Sacabambaspis had a laterally flattened body covered with scales, and its extended tail ended in a small fin web; it had no paired fins. Its blunt head was armored with bony plates, with forward-facing eyes. First found in Bolivia, it is known from several Gondwanan locations: Argentina, Australia, and the Arabian Peninsula; Middle to Late Ordovician, 470–453 Ma.

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Robert L. Carlton
    • 1
  1. 1.SalemUSA

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