A cladogram is most emphatically not a description of the pattern that evolution took in producing the taxa under study. This is an even more derived level of inference, and the limited terrestrial vertebrate fossil record may impose severe restrictions on our ability to evaluate such hypotheses. Indeed, it may not be possible to test some or all of them. Because the camellamma should be equally closely related to both parent species. It is quite possible that genetic and evolutionary considerations would lead those characteristics of the hybrid which were coded for analysis to more closely resemble one or the other parent.
Hybrids are a complex problem.
The above was a public post to the Dinosaur Mailing List.