Allia Bay Excavation Site (IMAGE) University of California - San Diego Caption Excavation of the bone bed at the Allia Bay site, East Turkana, in 1996. A cross section of the bone bed can be seen passing diagonally from the center of the image to the right hand corner. This is the site where researchers collected a 4-million-year-old bovid fossil that contained Gc-CS. Credit Photo courtesy of Meave Leakey, PhD. Usage Restrictions Use photo credit as indicated License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.