Trilobites of the late Cambrian Pterocephaliid in the Great Basin, United States /
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| Format: | Book |
| Language: | English |
| Published: |
Washington :
U.S. Government Printing Office,
1965.
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| Series: | U.S. Geological Survey. Professional paper
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| Subjects: |
| Physical Description: | [140] páginas : ilustraciones ; 29 cm.-- |
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