References

Briggs, Derek E.G. and Peter R. Crowther.ed.Paleobiology:A Synthesis. Blackwell
Science Ltd.:Cambridge, Massachusetts, USA, 1990. p.307-313.

Dodson, Peter and Phillip Gingerich.ed.Functional morphology and evolution.
American Journal of Science v.293-A. New Haven, Connecticut, 1993.

Thomason, Jeff.ed.Functional morphology in vertebrate paleontology. Cambridge
University Press: Cambridge, England,1995.

http://www.carleton.ca/~tpatters/teaching/paleo/paleogate.html

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