XLII.—On some works relating to a new classification of Ammonites

References

• The following are the titles of the various works in which this subject is treated:— Suess Ed. Ueber Ammonites Sitzungsber. k. Akad. Wiss. Wien 1865 lii and 1870lxi
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• 1868 . “ Zittel, Paläontologische MIttheilungen ” . In Die Cephalopoden der Stramberger Schichten
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• Laube . 1869 . Ueber Ammonites Aon und seine Verwandten . Sitzungsber. k. Akad. Wiss. Wien , lix : 15 – 15 .
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• Waagen . 1869 . Die Formenreihe des Ammonites subradiatus . Beneke's Geogn.-pal. Beitr. , ii : 183 – 183 . in1869
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• Zittel . 1870 . Paläontologische Mittheilungen . Die Fauna der ältern Cephalopoden-führenden Tithonbildungen ,
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• Waagen . 1870 . Ueber die Ansatzstellen der Haftmuskeln beim Nautilus und den Ammonitiden . Palæontographica, herausg. v. Dunker und Zittel , xvii : 185 – 185 .
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• Waagen . 1871 . Abstract of results of examination of the Ammonitefauna of Kutch, ⇐p;c . Records of the Geol. Surv. of India , 1871
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• Coquand , M. 1841 . Considérations sur les Aptychus , published, inin which he sums up all the opinions brought forward up to that date as to the nature of these singular organisms
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• Schluter , M. 1872 . Cephal. der ober. deutsch. Kreide , has ascertained that the aptychus of the Scaphites occupied exactly the same positionpl. 25. figs. 5 & 6
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• 1870 . Bull. de la Soc. Géol. de France , xxvii : 10 – 10 .
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• See A. planorbis, Sow., in Waagen Palæontogr. 1869 xvii pl. 40 fig. 5.
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• See A. Amaltheus and A. costatus Questedt 162 162 Juraand pl. 21. figs. 1–3; Cephalopoden, pl. 5. fig. 10 a; A. serpentinus, Pietet, Traité de Paléont. pl. 53. fig. 2; A. cristatus and A. varians, D'Orbigny, Céphal. crét. pls. 88 & 92.
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• Buvignier . Statistique géolog. de la Meuse , pl. 31. fig. 8.
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• Quenstedt . Jura , pl. 70. fig. 16.
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• O'Orbigny . Céphal. Jurass. , pl. 149. fig. 1, pls. 135 & 139.
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• O'Orbigny . Céphal. Jurass. , pl. 159. fig. 1.
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• 1869 . Palæontographica , xvii pl. 40. figs. 6 & 7.
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