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Problems of Ammonite Nomenclature. 2. Schlotheim's Types of Ammonites Capricornus

Published online by Cambridge University Press:  01 May 2009

Extract

In my Catalogue of the Ammonites of the Liassic Family Liparo-ceratidae in the British Museum, now in press, I was obliged to discuss one of the commonest and most widely quoted of ammonite species, namely Schlotheim's Amm. capricornus.1 Clearly it was impossible to ignore this species, merely because “its precise application was not known”2 I am not only in agreement with H. Douvillé3 that it is of capital importance always to respect a specific [trivial] name, however much generic names may be changed, but among the foreign ammonites in the British Museum there were several different forms labelled Amm.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1938

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References

page 362 note 1 Petrefactenkunde, viii, Mollusciten, 1820, p. 71 (at first named Amm. spatosus—a nomen nudum—in “Beiträge zur Naturgeschichte der Versteine-rungen, etc.,” Leonhard's Taschenbuch, vii, 1813, 101).Google Scholar

page 362 note 2 Trueman, , “Evolution of the Liparoceratidae,” Quart. Journ. Geol. Soc., lxxiv, 1919, 275.Google Scholar

page 362 note 3 C. R. Congrés géol. internal., sess. 2, Bologna, 1881 (1882), p. 608.Google Scholar

page 363 note 1 Personal information kindly given by Professor Dr. R. Brinkmann, Geologisehes Staatsinstitut, Hamburg.Google Scholar

page 363 note 2 C. R. Congrés géol. internal., sess. 2, Bologna, 1881 (1882), p. 594.Google Scholar

page 363 note 3 Smithsonian Miscellaneous Collections, 73, No. 8, 1936, 522 (Opinion 126).Google Scholar

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page 363 note 5 Histoire Naturelle des Coquilles, v (1802), 176.Google Scholar

page 364 note 1 Historiae animalium angliae, 1678, pl. vi, fig. 3.Google Scholar

page 364 note 2 Memorabilium Saxoniae Subterraneae, pt. 2, 1718, p. 53.Google Scholar

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page 364 note 4 Traité des Petrifications, 1742, p. 71, pl. xli, fig. 271.Google Scholar

page 364 note 5 In Knorr & Walch, Naturgeschichte der Versteinerungen, ii, pt. 1, 17681771, pl. i, fig. 5.Google Scholar

page 364 note 6 Die Juraformation Englands, Frankreichs und des S.W.-Deutschlands,” Württ. naturwiss. Jahresk., x, 1856, 278.Google Scholar

page 364 note 7 Die Ammoniten des Schwäiischen Jura, i, Der Schwarze Jura, 1883, 155.Google Scholar

page 364 note 8 The Ammonites of the Green Ammonite Beds of Dorset,” Quart. Journ. Geol. Soc., xcii, 1936, 450.Google Scholar

page 364 note 9 Die Versteinerungen Württembergs, 1830, p. 6, pl. iv, fig. 8.Google Scholar

page 364 note 10 Pal. Française, Terr. Jurass., i, 1844, 242, pl. lxv.Google Scholar

page 365 note 1 Monograph of the Lias Ammonites (Pal. Soc), pt. 5, 1882, p. 369.Google Scholar

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page 365 note 3 Yorkshire Type Ammonites, i, 1911, iii.Google Scholar

page 365 note 4 Waagen did not assign an author's name to Amm. capricornus, when listing it as a syntype of Aegoceras, but it is clear from his previous work that he had Schlotheim's species in mind.Google Scholar