Re: Tyrannosauridae

[Paleo_Mont <paleo_mont@excite.com>]

"Vertabrate Mesozoic Life" , not what i had.


On Sat, 8 Dec 2001 23:21:20 -0800 (PST), Paleo_Mont@excite.com wrote:

  2. Yes Gorgosaurus is back. see T.Holtz, "Mesozoic Life" That is one
  publication saying its back... cant give the exact page and numbers cause
my
  book is under a pile of some more books and i dont feel like digging it
out.
  Also think another publication on the way out, or somewhere to that may
say
  something similiar.
  um how do they differ. I think one is judithian, the other is Two med.
also
  i think the gracile and robust skeletal bodies is part of it as well. that
  info is also in a book in the same pile. 
  
  judith river formation:
  _Albertasaurus sarcophagus_'Flesheating lizard from Alberta'
  (nice name) 
  
  two medicine formation:
  Gorgosaurus liberatus  not sure on the name there. 
  
  Not a huge Tyrannosauridae fan so this is what i can rember. not sure if
its
  all right if its not i am sure Tom Holtz will let me know or someone else.
  
  cheers, 
  k.wicks
  
  
  
  
  
  
  
  
  On Sun, 9 Dec 2001 00:25:16 +0100, david.marjanovic@gmx.at wrote:
  
    Search the archives www.cmnh.org/fun/dinosaur-archive for more precise
  answers, as all these questio
    ns have been discussed repeatedly at length.
    
    > 1.) Is _Siamotyrannus_ real member of T-dae family?
    
    Probably it is a sinraptorid instead.
    
    > 2.) Is _Gorgosaurus_ considered a valid genus?
    
    By many. Depends on the still unresolved phylogeny.
  http://dev.tolweb.org/tree?group=Tyrannosauridae
    &contgroup=Tyrannosauroidea&dynnodeid=12613
    
    > And if so, how does it differ from _Albertosaurus_?
    
    Both *Gorgosaurus* and *Albertosaurus* consist of one species each; that
  the species are different h
    as not been questioned so far, I think.
    
    > 3.) How are distinguished members of Tyrannosaurini taxon from less
    > advanced tyrannosaurids?
    
    I think Tyrannosaurini is the most recent common ancestor of
  *Daspletosaurus torosus* and *Tyrannosa
    urus rex*? Has it got a published definition at all?
    This taxon is not mentioned at
  http://dev.tolweb.org/tree?group=Tyrannosauridae&contgroup=Tyrannosau
    roidea&dynnodeid=12613, so I can't find its supporting characters.
    
    > 4.) Is _Jenkhiskhan_ the same as _Tarbosaurus_?
    
    *Jenghizkhan*? Yes.
    
    > 5.) Was "T. rex" a scavenger or an agile hunter?
    
    Quite an agile hunter, able to run fast. Being a terrestrial scavenger
  seems to be impossible.
    
    **************************************
    The phylogenetic analysis raises more problems than it solves, but
  exposing these new problems may s
    timulate the search for the missing answers.
    on p. 1245 of
    Michel Laurin & Robert R. Reisz: A new study of *Solenodonsaurus
  janenschi*, and a reconsideration o
    f amniote origins and stegocephalian evolution, Canadian Journal of
Earth
  Sciences 36, 1239 -- 1255
    (1999)
    
  
  
  K.Wicks
  Paleo Mont - www.geocities.com/paleo_mont
  Paleo Mont Park - www.geocities.com/paleo_montpark
  
  
  
  
  
 
______________________________________________________________________________
  Send a friend your Buddy Card and stay in contact always with Excite
Messenger
  http://messenger.excite.com
  
  


K.Wicks
Paleo Mont - www.geocities.com/paleo_mont
Paleo Mont Park - www.geocities.com/paleo_montpark





______________________________________________________________________________
Send a friend your Buddy Card and stay in contact always with Excite Messenger
http://messenger.excite.com