RE: T. rex Blood Vessels

[Jeff Hecht <jeff@jeffhecht.com>]

At 12:50 PM -0700 3/24/05, Ken.Carpenter@dmns.org wrote:
>Isn't this old news being redone?

No. I've heard the paper was in the works for a while, but they results are new 
for public release. The samples came from a T. rex femur which was intact when 
discovered, with hollow interior that was not infilled with minerals. 
Schweitzer dissolved the calcium minerals in the bone to get the soft tissue. 
 
http://www.newscientist.com/article.ns?id=dn7195

No word on protein sequences or DNA. I'd expect protein sequences to follow, 
but not DNA, which doesn't hold up well. 

-- Jeff Hecht
>
>> -----Original Message-----
>> From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu] 
>> On Behalf Of Dino Guy Ralph
>> Sent: Thursday, March 24, 2005 12:40 PM
>> To: dinosaur@usc.edu
>> Subject: T. rex Blood Vessels
>> 
>> A new paper by (who else?) Schweitzer et al. about the 
>> extraction of structures that appear to be blood vessels from 
>> _T. rex_ bones appears in _Science_ this week. See a report 
>> at http://www.nature.com/news/2005/050321/full/050321-13.html.
>> 
>> 
>> --------
>> "Dino Guy" Ralph W. Miller III
>> Docent at the California Academy of Sciences proud member of 
>> the Society of Vertebrate Paleontology 
>> 
>> 
>> 

-- 
Jeff Hecht, science & technology writer
jeff@jeffhecht.com; http://www.jeffhecht.com
Boston Correspondent: New Scientist magazine
Contributing Editor: Laser Focus World
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