Re: Aliwalia [from Adam Yates]

["Jaime A. Headden" <qilongia@yahoo.com>]

Tim Williams (twilliams_alpha@hotmail.com) wrote:

<Moser, M. (2003). _Plateosaurus engelhardti_ Meyer, 1837 (Dinosauria: 
Sauropodomorpha) aus dem Feuerletten (Mittelkeuper; Obertrias) von Bayern.  
Zitteliana B 24: 3-186.
 
No dice on a pdf: the publication is nearly 200 pages long. _Gresslyosaurus_ is
reinstated by Moser based on sacral morphology: "...at the ventral side of the
left SR2 [sacral rib 2] ... there is a deep groove, which extends onto the
corpus and is bordered caudally by a strong lamella... This character is not
found in _Plateosaurus_ and _Sellosaurus_, therefore it is accepted as a
diagnostic character for a separate genus _Gresslyosaurus_ from the Rhaetian."
(Moser, 2003; p.168).>

  You're telling me that the justification of generic, to say the least not
just specific_ differentiation is a groove and lamella on a sacral vertebra? I
find this ... limited info ... hard to swallow. What is the sample size?

  Cheers,

Jaime A. Headden

"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com