Author: Cobban W.A. & Kennedy W.J.,
Title: The Upper Cretaceous dimorphic pachydiscid ammonite Menuites in the Western Interior of the United States
Description: 1993. In folio, broch., pp.14 + 14 pls. with facing captions, 6 figs. and 3 tabs. Geological Survey Professional Paper 1533

Keywords: paleontology Panama Canal Zone geology fossil shells


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