 The coroner and Native American Heritage Commission were contacted, and the anthropology department of UC Davis was called in to recover the unearthed artifacts.For six days, volunteers, UC Davis undergraduate students and professors, spent 240 hours on-site collecting materials and studying the dig.Along with arrowheads, spear points, cutting tools, beads, animal and human skeletal remains, excavators uncovered delicate chert drills - an important discovery because they are believed to have been used to perforate marine clam shells to make beads, which became their currency.