[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: 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?
Right. If it isn't sudamericid meanwhile.
> 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
All they share with xenarthrans is having been first found in South
America and being hypsodont. The teeth, I mean, but hardly anything else
is known... :.-(
I say they are australosphenidans. Simply because this hasn't been
proposed yet AFAIK, because they have a western Outer Gondwanan
distribution, and because they share an important plesiomorphy (6 cusps
arranged in 2 connected triangles). :o)
> Mayr, G. 2003. On the phylogenetic relationships of trogons
> (Aves, Trogonidae). _Journal of Avian Biology_ 34, 81-88.
> [...] 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).
So this means
Was there a comment on where Coraciiformes and/or Alcediniformes sit in
that tree, and if hummingbirds are Apodiformes?
+++ GMX - Mail, Messaging & more http://www.gmx.net +++
Bitte lächeln! Fotogalerie online mit GMX ohne eigene Homepage!