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Re: Frankenstein's Papers
As already found by Joyce (2008, Peabody Museum Bulletin, testudinate
phylogeny) and predicted by Joyce & Sterli (2007, Acta Pal. Pol.,
redescription of *Kayentachelys* showing the absence of testudine
That's Joyce (2007) and Sterli & Joyce (2007), respectively.
Sterli (2008) took the analysis by Joyce (2007), replaced the all-zero
outgroup (!) by four real taxa (the procolophonoid *Owenetta*, the
pareiasaur *Anthodon*, the sauropterygian *Simosaurus*, and *Sphenodon*),
unfortunately specified that outgroup to be monophyletic (!) before the
analysis (or at least I can't explain the tree otherwise), and added a few
taxa and characters. Result:
The tree within Testudines apparently hasn't changed -- it isn't shown
anywhere, not even in the supplementary information.
ScienceNOW has a short report on this paper that has Gaffney saying he
doesn't believe it and thinks *Condorchelys* is a cryptodire (in other
words, that the *Proterochersis* node is Testudines -- this is the view he
founded in 1975). His reasons are not given.
The perhaps most important result by Joyce (2007) was that the position of
Pleurodira in the turtle tree is surprisingly unstable...