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Palmer, Allison Ralph, 1927-. Cambrian Trilobites of East-Central Alaska : Lower Paleozoic Paleontology and stratigraphy of East-Central Alaska. Allison Ralph Palmer. In Geological Survey Professional Paper 559-B , Geological Survey Professional Paper 559-B. Geological Survey Profesional paper 559-B Biostratigraphy and geological history of Cambrian deposits of east-central Alaska; 127 species representing 97 genera of trilobites of Cambrian age are described. 158 s. : .
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