“…It is only within the last two decades, however, that taphonomic and experimental approaches have been systematically applied to symboling and music (e.g., d 'Errico, 1988a'Errico, ,b, 1991'Errico, , 1992a'Errico, ,b, 1996'Errico, , 2001Chase, 1990;Davidson, 1990;d'Errico and Cacho, 1994;d'Errico and Villa, 1997;Chase and Nowell, 1998;d'Errico et al, 1998a,b;Vanhaeren, 1999, 2002;d'Errico and Nowell, 2000;Vanhaeren et al, 2006; see also discussion in Chase and Dibble, 1987). These types of studies include projects that are oriented toward understanding techniques of manufacture (e.g., White, 2001White, , 2006Henshilwood, 2004;d'Errico et al, 2005) including the chronological ordering of marks in notation systems (e.g., Marshack, 1991;d'Errico, 1995 and those that are concerned with discerning anthropogenic from naturally produced "art objects" (e.g.…”