Dr. Haile-Selassie is an Ethiopian paleontologist. He is now curator and head of physical anthropology at the Cleveland Museum of Natural History. Haile-Selassie first worked with the Middle Awash team as a student and did his dissertation research in the study area. After receiving his Ph.D. from the University of California, Berkeley, he started his own project, north of the Lucy site in the Afar. Dr. Haile-Selassie has discovered many important fossils, including the first fragments of the Aramis Ardipithecus ramidus skeleton in 1994. He later discovered the earliest hominid species, Ardipithecus kadabba, in 1997. Ardipithecus kadabba's remains are dated between 5.6 and 5.8 million years ago, and Dr. Haile-Selassie's analysis of them are published in a 2009 book with the University of California Press.