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The History of the Vertebrates

  • E.C. Olson
Part of the Handbook of Sensory Physiology book series (SENSORY, volume 7 / 5)

Abstract

The history of the vertebrates extends back in time nearly 500 millions of years. The first records are fragmentary and scattered in the rocks of the Ordovician period (Fig. 1). After a lengthy gap from the Middle Ordovician to the Late Silurian, the record is reasonably continuous to the present time. The remains of vertebrates, with relatively rare exceptions, consist of hard parts bones, calcified cartilage, teeth and scales. The masticatory and locomotor systems are especially well documented and a great deal of the evolutionary history of vertebrates is written in the changes of structures related to these two systems. Less well documented, but still of primary importance, are the structures involved in reception and integration of information: the brain, cranial nerves, and sensory organs.

Keywords

Late Cretaceous Fossil Record Middle Devonian Continental Drift Marine Reptile 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Brodkorb, P.: Catalogue of fossil birds, Pt. 1. Archaeopterygiformes through Ardeiformes. Bull. Florida State Mus. Biol. Sci. 7, 179–293 (1963).Google Scholar
  2. Gregory, J.: The jaws of the Cretceous tooth birds, Ichthyornis and Hesperornis. Condor 54, 73–88 (1952).Google Scholar
  3. Jeffries, R.P.S.: The subphylum Calcichordata-primitive fossil chordates with echinoderm affinities. Bull. British Mus. (Nat. Hist.), Geology 16, 243–339 (1968).Google Scholar
  4. Ostrum, J.H.: Archaeopteryx and the origin of flight. Quart. Rev. Biol. 49, 27–47 (1974).Google Scholar
  5. Romer, A. S.: Vertebrate Paleontology, 3rd ed. Chicago: Univ. Chicago Press, 1966.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1977

Authors and Affiliations

  • E.C. Olson
    • 1
  1. 1.Los AngelesUSA

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