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IV.—Contribution to the Fauna of the Chalk Rock

Published online by Cambridge University Press:  01 May 2009

Charles P. Chatwin  and
Thomas H. Withers
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Extract

Although small examples of Ammonites are fairly common in the Chalk Rock (Turonian) of this country, large examples are decidedly rare. The only species of Ammonites as yet recorded from this bed are Prionocyclus neptuni, Geinitz, sp., and Pachydiscus peramplus, Mantell, sp. The former species is always of a small size and is not at all common, but small examples of the latter species, averaging 1½ inches in diameter, are often found, and one large example measuring 8 inches across has been recorded by Mr. H. Woods.

Type
Original Articles
Information
Geological Magazine , Volume 6 , Issue 2 , February 1909 , pp. 66 - 68
Copyright
Copyright © Cambridge University Press 1909

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References

page 67 note 1 Woods, H., “Mollusca of the Chalk Rock”: Quart. Journ. Geol. Soc., 1896, vol. lii, p. 80.Google Scholar

page 67 note 2 Bayle, E., “Explication de la carte géologique de la France,” 1878, iv, Atlas, pls. xlv, xlvi.Google Scholar

page 67 note 3 Crick, G. C., “Cretaceous Fossils of Natal.—I. The Cephalopoda from the Deposit at the North End of False Bay, Zululand”: Third and Final Report Geol. Surv. of Natal and Zululand, 1907, pp. 209, 213.Google Scholar

page 67 note 4 “That is, directed backwards, the lobes pointing across the whorl.”

page 67 note 5 Sowerby, J. de C., Min. Conch., 1827, vi, p. 136, pl. DLXX, fig. 5.Google Scholar

page 67 note 6 Kossmat, F., “Untersuchungen über die Südindische Kreideformation”: Beitr. zur Pal. und Geol. Österr:-Ungarns und des Orients, 1898, Bd. xi, Heft iii, p. 112.Google Scholar

page 68 note 1 Stoliczka, F., Cretaceous Fauna of Southern India (Pal. Indica), 1865, vol. i, 134.Google Scholar

page 68 note 2 Kossmat, F., op. cit., p. 116.Google Scholar