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Re: Noasaurids (Re: Late Triassic Footprints with Reversed Hallux)



On Mon, 8 Jul 2002 12:31:10   
 T. Michael Keesey wrote:
>>   basal abelisaurs are:
>[...]
>>   *Quilmesaurus curriei*
>
>Wasn't this described as a theropod of uncertain affinities?

Yeah, I don't recall Coria assigning _Quilmesaurus_ to the abelisaur lineage.  
IIRC, he described it as unusual and exhibited some features that link it with 
_Ceratosaurus_, _Giganotosaurus_, and some other forms.  Interestingly, to me, 
is that it shows a well-developed cnemial crest, which is similar to the 
condition in _Genusaurus_.  Perhaps this cnemial crest might be primitive among 
the Theropoda, or maybe it is a synapomorphy of a basal abelisaur group.  I 
don't know nearly enough about theropods to speculate further.

>>   *Genusaurus sisteronis* is a "ceratosaur" with features similar to basal
>> ableisaurs. I will be covering this on my website ... with illustrations
>> :).
>
>Cool!

Ah, yes.  Great!  I look forward to Jaime's illustrations of this taxon.  It's 
a rather unique dinosaur, being so primitive yet being found so late in the 
Cretaceous of France.  When you say it is a "ceratosaur with features similar 
to basal abelisaurs," are you perhaps indicating that it might indeed turn out 
to be a bona fide abelisaur?  That would be very interesting...and would only 
confound the temporal and geographical situation.

Steve

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Steve Brusatte-DINO LAND PALEONTOLOGY
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