Echinoids from the Triassic (St. Cassian) of Italy, their lantern supports, and a revised phylogeny of Triassic echinoids /
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Smithsonian Institution Press,
1984.
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| Series: | Smithsonian contributions to paleobiology ;
no. 56. |
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| Item Description: | Distributed to depository libraries in microfiche. |
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| Physical Description: | iii, 41 pages : illustrations ; 27 cm. |
| Bibliography: | Bibliography: page 13. |