Re: Sinornithosaurus and Negative Evidence

["Tim Williams" <twilliams_alpha@hotmail.com>]

Heinz Peter Bredow wrote:

> Regarding positive evidence: In September 1999 there was an ABC article 
> about
> Sinornithosaurus which quoted Larry Martin as saying that he wanted to see
> fossils of lizards and other critters from Liaoning in case they show 
> similar
> "feathers"--proving that the halos are not external integument.


The Yixian ornithischians (_Jeholosaurus_, _Psittacosaurus_) show no such 
"halos".  Just the theropods and birds.


Tim




------------------------------------------------------------

Timothy J. Williams

USDA/ARS Researcher
Agronomy Hall
Iowa State University
Ames IA 50014

Phone: 515 294 9233
Fax:   515 294 3163

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