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On Graptolites, Their Duration in Geological Periods, and Their Value in the Identification of Strata

TitleOn Graptolites, Their Duration in Geological Periods, and Their Value in the Identification of Strata
Publication TypeJournal Article
Year of Publication1850
AuthorsHall, J
JournalProceedings of the American Philosophical Society
Volume2
Pagination351-352
Keywordsgeology paleontology