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FERUGLIOTHERIUM, MAYR ON TROGONS
João Simões Lopes Filho wrote:
What is the current status of South American Cretaceous
ex-multituberculate mammal Ferugliotherium ?
Well, it's still a ferugliotheriid gondwanathere right? The
question now is 'what are gondwanatheres?', seeing as most
workers seem to be saying that they're not multituberculates.
I haven't seen much discussion of the xenarthran theory in
recent papers (though of course there is always the
unofficial idea that gondwanatheres are the morphological
'bridge' showing that xenarthrans are actually derived
By the way, the following is out..
Mayr, G. 2003. On the phylogenetic relationships of trogons
(Aves, Trogonidae). _Journal of Avian Biology_ 34, 81-88.
As noted before on this list, research in the last few years
really has meant that the neornithine tree is slowly coming
together. This is an important new contribution. Feduccia's
derived 'alcediniform' columella morphology is found to be
present in steatornithids BUT analysis of other characters
supports monophyly of a steatornithid-trogonid clade
separate from alcediniforms minus trogonids. That
steatornithids are closer to trogons than other
'caprimulgiforms' partly explains why they didn't group with
other 'caprimulgiforms' in the Livezey & Zusi supertree.
Further evidence for 'caprimulgiform' paraphyly is
presented (see Mayr 2002 - _J. Ornith_. 143, 82-97) and
non-steatornithid 'caprimulgiforms' are found to group with
apodiforms. This means that Huxley's 1867
Cypselomorphae is resurrected, and strigiforms are
postulated as the sister-taxon to Cypselomorphae +
(Steatornithidae + Trogonidae).
School of Earth & Environmental Sciences
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