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Re: Texas dinos



--- Acrocanthosaurus@aol.com wrote:
> how closely related is the Pluerocoelus to the
> Astrodon and the Africian 
> dinosaur Malawisaurus?And is the Acrocanthosaurus
> more closely related to 
> Spinosaurus or Allosaurus?

_Acrocanthosaurus_ itself is closer to _Allosaurus_
and even _Carcharodontosaurus_. Although the spines
might be misleading, the vertebrae are different from
that of Spinosaurids.
In his 1999 Evolution of Dinosaurs paper, Sereno
illustrates this relationship:

Allosauroidea
----Other allosauroids
  \-Acrocanthosaurus
   \-Giganotosaurus
    \_Carcharodontosaurus

hope this helps.
BTW, my sauropod phylogeny is notbad or good. Mike
Keesey most likely knows.

jurasically,
-marco

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