Trilobites of the late Cambrian Pterocephaliid biomere in the Great Basin, United States.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off,
1965.
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| Series: | Professional paper (Geological Survey (U.S.)) ;
493. |
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| Physical Description: | 105 pages : illustrations, maps, 23 plates (3 folded in pocket) ; 29 cm. |
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| Bibliography: | Bibliography: pages 97-100. |