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Re: Stratigraphy, biogeography & cladograms

>>And if they *all* think feathered flight evolved in multiple sublines
simultaneously, then God help palaeontology.>>

I refer you to a quote that I think can be attributed to a paper by
Nixon and Carpenter, 1996 _On simultaneous analysis_ Cladistics
12:221-241 - "Those who contrast _truth_ with explanatory power either
misunderstand the difference between science and metaphysics, or have
divine insight" ..... in short, we do _not expect_ to know the truth
about the origin, and or, evolution of birds - the cladistic method,
whether or not you choose to accept it, provides us with hypotheses that
are, at least, testable.



Gareth J. Dyke
Dept of Earth Sciences
University of Bristol
Wills Memorial Building 
Queens' Road
Bristol BS8 1RJ UK

www: http://palaeo.gly.bris.ac.uk/