| Reference Type | Journal (article/letter/editorial) |
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| Title | Problems of Ammonite Nomenclature |
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| Journal | Geological Magazine |
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| Authors | Spath, L. F. | Author |
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| Year | 1938 (December) | Volume | 75 |
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| Issue | 12 |
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| Publisher | Cambridge University Press (CUP) |
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| DOI | doi:10.1017/s0016756800092074 |
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| Generate Citation Formats |
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| Mindat Ref. ID | 246875 | Long-form Identifier | mindat:1:5:246875:8 |
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| GUID | 0 |
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| Full Reference | Spath, L. F. (1938) Problems of Ammonite Nomenclature. Geological Magazine, 75 (12) 543-547 doi:10.1017/s0016756800092074 |
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| Plain Text | Spath, L. F. (1938) Problems of Ammonite Nomenclature. Geological Magazine, 75 (12) 543-547 doi:10.1017/s0016756800092074 |
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| In | (1938, December) Geological Magazine Vol. 75 (12) Cambridge University Press (CUP) |
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| Abstract/Notes | AMMONITES VARIANS J. Sowerby2 is a composite species, based on five syntypes, which are preserved in the British Museum (Natural History),3 and have long been accessible to any reviser who wished to select a lectotype from among these syntypes. Nobody, however, has yet done so. In the days of the early revisers, of course, from Mantell and Brongniart (1822) to Sharpe (1853), nomenclatorial restrictions were unknown; and even when Semenow (1899)4 dealt with Sowerby's species, he accepted the customary interpretation of Schloenbachia varians without going back to Sowerby's original description and figures. Semenow took d'Orbigny's5 excellent figure as typical, and his restriction seemed to me convenient to adopt,6 if not actually binding. But on going more fully into the matter I discovered not only that Semenow's selection (if it be selection) is not valid but also that none of the forms which authors nowadays identify with Schloenbachia varians agrees either with Sowerby's description or with any of the syntypes in the British Museum. It is thus highly desirable to discuss this common zonal ammonite species and place its interpretation on a sound footing. |
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