Permian crinoid Calceolispongia.
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[New York] :
[Geological Society of America],
1949.
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| Series: | Memoir (Geological Society of America) ;
34. |
| Subjects: |
| Physical Description: | x, 132 pages : plates ( 1 folded in pocket) maps. ; 26 cm. |
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| Bibliography: | "References": pages 98-99. |