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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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