Titanosaur embryo articles

[bh480@scn.org]

From: Ben Creisler bh480@scn.org
In case this has not been posted yet, the new issue of 
Science has an article about embryonic titanosaur skulls. 
MSNBC also has an online article:

http://www.msnbc.com/news/634804.asp?0dm=C21AN


Science Sep 28 2001: 2444-2446
Embryonic Skulls of Titanosaur Sauropod Dinosaurs 
Luis M. Chiappe, Leonardo Salgado, Rodolfo A. Coria 

Little is known about the cranial anatomy of the 
taxonomically diverse and geographically widespread 
titanosaurs, a paucity that has hindered inferences about 
the genealogical history and evolutionary development of 
the latest sauropod dinosaurs. Newly discovered fossil 
eggs containing embryonic remains from the Late Cretaceous 
of Argentina provide the first articulated skulls of 
titanosaur dinosaurs. The nearly complete fetal skulls 
shed light on the evolution of some of the most notable 
cranial features of sauropod dinosaurs, including the 
retraction of the external nares, the forward rotation of 
the braincase, and the abbreviation of the infraorbital 
region. 

Science Sep 28 2001: 2371. 
Unhatched Eggs Help Dinos Get a Head
Erik Stokstad