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Re: Sinornithosaurus and Negative Evidence




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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