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I.—On Hyperodapedon Gordoni

Published online by Cambridge University Press:  01 May 2009

Rudolf Burckhardt
Rudolf Burckhardt
Affiliation:
University of Basel, Switzerland.
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Extract

In the foregoing description I have confined my remarks to the rightside of the skull. The observer will not fail to notice from the figures the disparities existing in the two sides. This asymmetryis particularly conspicuous ventrally, the region from which Huxley principally deduced the arguments in support of his more important speculations. The area of dislocation, the centre of which apparently lies in the crater-like opening of the left prtesplenial, extends from the left prasruaxillary to the pterygoid in the skull, and as far as the splenial on the lower jaw. Its place of greatest intensity has beenmarked by a + on the figure, where not only the surface of the bones is most damaged, but where the mandible has been so much compressed that a crest has actually been formed below the row of teeth on its outer wall.

Type
Original Articles
Information
Geological Magazine , Volume 7 , Issue 12 , December 1900 , pp. 529 - 535
Copyright
Copyright © Cambridge University Press 1900

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References

page 531 note 1 The writer desires to refer to the remarkable discoveries made prior to 1892 in the Elgin Sandstone, Morayshire, which were described by Mr.Newton, E. T., F.R.S. (Proc. Roy. Soc., Dec. 15, 1892, vol. lii, pp. 389–391CrossRefGoogle Scholar; Phil. Trans., vol. clxxxivGoogle Scholar), in which he enumerates Gordonia Traquairi, G. Huxleyiana, G. Duffiana, G. Juddiana, Geikia Elginensis, and Elginia mirabilis. Reference was also made to a form resembling Ætosaurus (Geol. Mag., 1893, p. 557Google Scholar) named Ornithosuchus Woodwardi, and to Erpetosuchus Granti (see Proc. Roy. Soc., Dec. 7, 1893, vol. liv, pp. 437, 438Google Scholar; Phil. Trans., 1894, vol. clxxxv B, p. 573, pls. liii–lviGoogle Scholar). There were probably also two species of Thecodontosaurus from the Trias of Bristol, and perhaps a third from Leamington.