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II.—Description of a Fossil Shark (Ctenacanthus costellatus) from the Lower Carboniferous Rocks of Eskdale, Dumfriesshire

Published online by Cambridge University Press:  01 May 2009

Extract

The deficiency of our knowledge of the organization and configuration of the Palaeozoic Selachii is an unfortunate fact too well known to biologists to render it necessary for me to dilate upon here. Immense numbers of genera and species have been founded upon detached teeth and spines; but as yet very few specimens have occurred, which threw any light upon the general organization and configuration of the ancient possessors of these now scattered relics.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1884

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References

page 3 note 1 See A. Heim, Mechanismus der Gebirgsbilding, Band II. s. 17.Google Scholar

page 6 note 1 Poissons Fossiles, vol. iii. p. 23.Google Scholar

page 6 note 2 In connexion with the dentition of Tristychius, see a paper by Mr. T. Stock in Ann. and Mag. Nat. Hist. Sept. 1883.Google Scholar

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page 7 note 7 Proc. Koy. Soc. New South Wales, 3 Oct. 1881.Google Scholar