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Wiley InterScience | ||||||||||
  PalaeontologyVolume 46 Issue 3, Pages 431 - 445 Published Online: 24 Nov 2003 © The Palaeontological Association, 2010
Abstract | Full Text: PDF (Size: 2208K) | Related Articles | Citation Tracking  Protaspides of Leiostegium and their implications for membership of the order Corynexochida Copyright The Palaeontological Association KEYWORDS Protaspides • Leiostegium • Ptarmigania • taxonomy • Corynexochida ABSTRACTAbstractProtaspid morphologies of Leiostegium sp. aff. L. formosum from the Lower Ordovician Garden City Formation, western United States strongly support the inclusion of the Leiostegiina in the order Corynexochida. A similar metaprotaspid morphotype is present in the three suborders of the Corynexochida, the Corynexochina, Leiostegiina, and Illaenina, supporting their corynexochid membership. Received: 04 September 2001; Accepted: 00 0000; 19 April 2002; | 
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