Re: UTILITY OF CLADE NAMES

[Dinogeorge <Dinogeorge@aol.com>]

In a message dated 98-04-28 02:46:56 EDT, jwoolf@erinet.com writes:

<< _Tyrannosaurus_ has brow horns, >>

If this is true (and I've heard that the Larsons just discovered this in
"Stan"), then it's another point of difference between _Jenghizkhan_, which
has no brow horns, and _Tyrannosaurus_--and a point of similarity between
_Tyrannosaurus_ and earlier tyrannosaurines such as _Gorgosaurus_,
_Albertosaurus_, and _Daspletosaurus_.

Anyway, I'm interested in hearing more about _Tyrannosaurus_ brow horns, since
most specimens don't seem to show them.