Author: Woodring W.P.,
Title: Geology and paleontology of Canal zone and adjoining parts of Panama
Description: 1959. Description of tertiary mollusks (Gastropods: Vermetidae and Thaididae). In folio, bross., pp. 93 + 15 pls. Geological Survey Professional Paper 306-B [Part 2 of 6]

Keywords: paleontology Panama Canal Zone geology fossil shells


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