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Record Nr. |
UNINA9910709705603321 |
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Autore |
Cobban William A. <1916-2015, > |
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Titolo |
Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the western interior of the United States / / by William A. Cobban |
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Pubbl/distr/stampa |
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Washington : , : Department of the Interior, U.S. Geological Survey, , 1987 |
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Descrizione fisica |
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1 online resource (iv, 28 pages) : illustrations, maps |
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Collana |
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U.S. Geological Survey professional paper ; ; 1445 |
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Soggetti |
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Acanthoceratidae - Frontier Formation |
Ammonoidea - Frontier Formation |
Paleontology - Cretaceous |
Paleontology - United States |
Acanthoceratidae |
Cretaceous Geologic Period |
Paleontology |
United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"Ammonites of the genera Calycoceras, Acanthoceras, Plesiacanthoceras, and Protacanthoceras from the Frontier Formation and equivalent rocks are described and illustrated." |
Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/). |
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Nota di bibliografia |
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Includes bibliographical references (pages 24-26) and index. |
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