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| Class Graptolithoidea Lapworth 1875 sensu Beklemishev, 1951 1. STOLONOIDEA Kozlowski, 1938 2. CAMAROIDEA Kozlowski, 1938 3. TUBOIDEA Kozlowski, 1938 4. DENDROIDEA Nicholson, 1872 5. GRAPTOLOIDEA Lapworth, 1875 6. RHABDOPLEUROIDEA Beklemishev, 1951 7. CEPHALODISCOIDEA Beklemishev, 1951 Beklemishev, V.N. 1951. Principles of Comparative Anatomy of Invertebrates. [in Russian]. Beklemishev, V.N. 1951. On the systematic structure of Animals (Vtorichnorotye (Deuterostomia)), their origin and composition. - Uspekhi Sovremennoy Biologii 32, 256-270. |
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| Graptolite Classification by V.N. Beklemishev |
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| Edited by Piotr Mierzejewski, the Count of Calmont & Countess Maja Anna Korwin-Kossakowska Zaklad Paleobiologii Under the auspices of The Free Rosicrucian University 2004 |
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| Vladimir N. Beklemishev 1890-1962 |
| updated: 21 09 2004 |