Re: Newcomer (Male) with a few things to share (2nd attempt)

[Tim Williams <twilliams_alpha@hotmail.com>]

Jamie Stearns wrote:

> It might have had something to do with the life restoration I saw that made 
> it look like a Coelophysis with a Dilophosaurus-like head, but Rauhut found 
> it to be between Segisaurus and Coelophysis. Alternatively, it could be 
> more closely related to Coelophysis than anything else.

It might be better to treat _Syntarsus rhodesiensis_ and _Syntarsus 
kayentakatae_ as separate OTUs.  _Syntarsus rhodesiensis_ (from southern 
Africa, type species for _Syntarsus_ and _Megapnosaurus_) is so close to _C. 
bauri_ that recent studies have referred _S. rhodesiensis_ to _Coelophysis_ 
(Downs, 2000; Bristowe and Raath, 2004).  For one thing, the alleged 'narial 
fenestra' of _S. rhodesiensis_ appears not to exist.

_S. kayentakatae_ (Arizona) may be referrable to _Coelophysis_ too.  
However, unlike _C. rhodesiensis_, it does have those paired crests - which, 
although similar to those of _Dilophosaurus_ are much less prominent.

> Not sure I should put Sauropodomorpha up just yet, as I'm not very sure of 
> a lot of things regarding that group (relationships within Titanosauria are 
> kind of messy for one)

So many new titanosaur taxa have been described recently that it's difficult 
to keep up with the phylogeny.

Cheers

Tim