 He then formed the IARE, inviting notably Johanson, an American anthropologist and founding director of the Institute of Human Origins of Arizona State University; Jon Kalb, an American geologist; and Yves Coppens, a French-born paleontologist now based at the Collège de France, to co-direct the research.An expedition was formed with four American and seven French participants, and in the fall of 1973 the team surveyed Hadar, Ethiopia for fossils and artifacts related to the origin of humans.They found numerous fossils, but at first no hominids.