Pre-Clovis occupation 14,550 years ago at the Page-Ladson site, Florida, and the peopling of the Americas Halligan, J. J. ; Waters, M. R. ; Perrotti, A. ; Owens, I. J. ; Feinberg, J. M. ; Bourne, M. D. ; Fenerty, B. ; Winsborough, B. ; Carlson, D. ; Fisher, D. C. ; Stafford, T. W. ; Dunbar, J. S. Abstract Publication: Science Advances Pub Date: May 2016 DOI: 10.1126/sciadv.1600375 Bibcode: 2016SciA....2E0375H