Re: New Spanish PhD on dinosaurs: Galvesaurus herreroi

[jigruiz@unizar.es]

Losillasaurus is the sister group to Turiasaurus+Neosauropoda in both  
strict consensus cladogram and semi-strict consensus cladogram in  
Barco's analysis.

Turiasauria is defined by Royo-Torres et al. (2006) as "a stem-based  
taxon including all eusauropods more closely related to T. riodevensis  
than to Saltasaurus loricatus"; following this definition Galvesaurus  
and Losillasaurus are not members of Turiasauria.

J. Ignacio Ruiz-Omeñaca

> According to Dr. Barco, Galvesaurus is not a
> cetiosaurid nor a turiasaur, but a basal macronarian
> related with Phuwiangosaurus, Aragosaurus,
> Tastavinsaurus, Cedarosauus and Venenosaurus. This 6
> genera form a monophyletic group (unnamed) which is the
> sister group to Titanosauriformes.


This is interesting, because it means that this 6-genus clade (which  
contains genera that are Cretaceous in age, or at least close to the  
Jurassic-Cretaceous boundary) is basal to the Late Jurassic  
_Brachosaurus_.

Royo-Torres et al. (2006) recovered _Galvesaurus_ (as _Galveosaurus_)  
in the Turiasauria clade, along with _Losillasaurus_ and  
_Turiasaurus_.  I wonder if  the _Losillasaurus_-_Turiasaurus_ clade  
was retained in Barco's analysis.  How secure is Turiasauria?



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Jose Ignacio Ruiz-Omeñaca
Museo del Jurásico de Asturias (MUJA)
E-33328 Colunga, Spain
www.dinoastur.com
www.museojurasicoasturias.com
www.aragosaurus.com
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