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The pelvis of Archaeopteryx

Published online by Cambridge University Press:  01 May 2009

A. D. Walker
A. D. Walker
Affiliation:
Department of Geology, University of Newcastle upon Tyne, Newcastle upon Tyne, NE1 7RU
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Summary

Examination of the Eichstätt specimen of Archaeopteryx shows that the pubis agrees with those of the Berlin and London specimens in indicating a downward and backward inclination of some 135° relative to a line drawn through the lower extremities of the iliac blade. The greater part of the backward rotation of the bird pubis had thus taken place by the Kimmeridgian Stage (sensu anglico) of the Upper Jurassic. A definite pectineal process is present in Archaeopteryx, indicating the existence of a well-developed ambiens muscle. Some preliminary remarks are made about the skull of Archaeopteryx.

Type
Articles
Information
Geological Magazine , Volume 117 , Issue 6 , November 1980 , pp. 595 - 600
Copyright
Copyright © Cambridge University Press 1980

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References

Bellairs, A. d'A. & Jenkin, C. R. 1960. The skeleton of birds. In Biology and Comparative Physiology of Birds, vol. I (ed. Marshall, A. J.), pp. 241–300. New York & London: Academic Press.CrossRefGoogle Scholar
Charig, A. J. 1972. The evolution of the archosaur pelvis and hind-limb: an explanation in functional terms. In Studies in Vertebrate Evolution: Essays Presented to Dr F. R. Parrington, F.R.S. (ed. Joysey, K. A. & Kemp, T. S.), pp. 121–55. Edinburgh: Oliver & Boyd.Google Scholar
Heilmann, G. 1926. The Origin of Birds. London: H. F. & G. Witherby.Google Scholar
Heller, F. 1959. Ein dritter Archaeopteryx-Fund aus den Solnhofener Plattenkalken von Langenaltheim/Mfr. Erlanger geol. Abh. 31 1–25.Google Scholar
Ostrom, J. H. 1972. Description of the Archaeopteryx specimen in the Teyler Museum, Haarlem. Proc. Koninkl. Nederl. Akad. Wet. B, 75 289–305.Google Scholar
Ostrom, J. H. 1973. The ancestry of birds. Nature, Lond. 242, 136.CrossRefGoogle Scholar
Ostrom, J. H. 1975(a). On the origin of Archaeopteryx and the ancestry of birds. Colloques int. Cent. natn. Rech. scient. 218 519–32.Google Scholar
Ostrom, J. H. 1975(b). The origin of birds. Ann. Rev. Earth Plan. Sci. 3 55–77.CrossRefGoogle Scholar
Ostrom, J. H. 1976. Archaeopteryx and the origin of birds. Biol. J. Linn. Soc. 8 91–182.CrossRefGoogle Scholar
Petronievics, B. & Woodward, A. S. 1917. On the pectoral and pelvic arches of the British Museum specimen of Archaeopteryx. Proc. zool. Soc. Lond. 1–6.Google Scholar
Walker, A. D. 1970. A revision of the Jurassic reptile Hallopus victor (Marsh), with remarks on tae classification of crocodiles. Phil. Trans. R. Soc. B, 257 323–72.Google Scholar
Walker, A. D. 1972. New light on the origin of birds and crocodiles. Nature, Lond. 237 257–63.CrossRefGoogle Scholar
Walker, A. D. 1974. Evolution, organic. McGraw-Hill Yearb. Sci. Technol. 177–9.Google Scholar
Walker, A. D. 1977. Evolution of the pelvis in birds and dinosaurs. In Problems in vertebrate evolution: Essays Presented to Professor T. S. Westoll, F.R.S. (eds Andrews, S. M., Miles, R. S. & Walker, A. D.), pp. 319–58. Linn. Soc. Symp. Ser. No. 4. London, New York: Academic Press.Google Scholar
Wellnhofer, P. 1974. Das fünfte Skelettexamplar von Archaeopteryx. The fifth skeletal specimen of Archaeopteryx. Palaeontographica, A, 147 169–216.Google Scholar
Wellnhofer, P. 1976. Das neue Eichstätter Archaeopteryx-Examplar. Natur u. Museum, 106 257–64.Google Scholar