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I can't tell you how dissatisfied I am with the current crop of
theropod-avian cladograms. Everything's circular or tautological, nothing
can be or has been checked in independent ways.
I for one am very eager to see the cladogram that you have in mind. BCF is
an interesting theory of avian evolution, but I have yet to see it
represented as an explicit or testable hypothesis. Let's see where the BCF
cladogram puts birds relative to dromaeosaurs, ceratosaurs, herrerasaurs,
sauropodomorphs etc, then we'll talk.
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