image: Life reconstruction of the head of Tiarajudens eccentricusfrom the Permian of Brazil. This image relates to an article that appeared in the March 25, 2011, issue of Science, published by AAAS. The study, by Dr. Juan Carlos Cisneros, at Universidade Federal do Piauí in Ininga, Brazil, and colleagues was titled, "Dental Occlusion in a 260-Million-Year-Old Therapsid with Saber Canines from the Permian of Brazil." view more
Credit: [Illustration by Juan Cisneros]