Observations on some Lower palaeozoic tremanotiform bellerophontacea (gastropoda) from North America
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| Format: | Book |
| Language: | English |
| Published: |
London:
Palaentological Association,
[1972]
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| Item Description: | Reprint from: Palaeontology, Volume 15, Part 3, 1972 |
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| Physical Description: | p. 413-422 : ill., diagrs ; 25 cm. |
| Bibliography: | Includes bibliography |