[1] INAH, Direcc Antrpol Fis, Mexico City, DF, Mexico
[2] Princeton Univ, Dept Anthrpol, Princeton, NJ 08544 USA
[3] Univ Mayor, Fac Humanidades, Soc & Hlth Res Ctr, Santiago, Chile
[4] Penn State Univ, University Pk, PA 16802 USA
[5] Univ Republica, Dept Antropol Biol, Montevideo, Uruguay
[6] Univ Bonn, Bonn, Germany
[7] Univ Vienna, Vienna, Austria
[8] Univ Nacl Autonoma Mexico, Fac Ciencias, Mexico City, DF, Mexico
[9] Univ Chicago, Dept Human Genet, Chicago, IL USA
[10] Mt St Vincent Univ, Sociol & Anthropol, Halifax, NS, Canada
[11] IDEAus CONICET, Inst Div Evoluci Austral, Chubut, Argentina