Hi,

review: http://www.sciencemag.org/content/331/6014/134.full

article: http://www.sciencemag.org/content/331/6014/206.full

Ricardo N. Martinez, Paul C. Sereno, Oscar A. Alcober, Carina E. Colombi,
Paul R. Renne, Isabel P. Montañez and Brian S. Currie:
A Basal Dinosaur from the Dawn of the Dinosaur Era in Southwestern Pangaea.

Science 14 January 2011:
Vol. 331 no. 6014 pp. 206-210
DOI: 10.1126/science.1198467

--Mikko