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Re: Archaeopteryx and Flight
<<Also, considering that some rather specialized water birds are
known from the Late Cretaceous, it is fairly clear that some
rather specialized birds of ohter sorts had to already exist.
[This can be confirmed by cladistic analysis of the relationships
of the water birds to other living groups, showing that forms
similar to certain living groups had to exist *prior* to the
evolution of certain aquatic groups].>>
I didn't realise that cladistics could confirm anything. I thought it was
based on parsimony and represents only the best-fit representation of
relationships. Did the water birds in the late Cretaceous compete for the
same food as the pterosaurs or were they specialised to feed on something
the pterosaurs didn't.
Curator of Palaeontology
University of Glasgow
Mountains are found in erogenous zones.
(Geological Howlers - ed. WDI Rolfe)