Early Silurian graptolites from southeastern Alaska and their correlation with graptolitic sequences in North America and the Arctic /

Bibliographic Details
Main Authors:	Churkin, Michael, 1932- (Author), Carter, Claire (Author)
Format:	Government Document eBook
Language:	English
Published:	Washington : United States Department of the Interior, Geological Survey, 1970.
Series:	Geological Survey professional paper ; 653.
Subjects:	Graptolites > North America. Graptolites > Arctic regions. Paleontology > Silurian. Paleontology > North America. Paleontology > Arctic regions. Graptolites. Paleontology. Silurian Geologic Period. Arctic Regions. North America. From 405 to 425 million years ago
Online Access:	https://purl.fdlp.gov/GPO/gpo87577

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