John W. Burgeson (
Fri, 27 Jun 1997 21:23:59 -0400

Came on one reference to a unique human attribute -- counting --
in MATHEMATICAL MYSTERIES by Calvin Clawson (1996).

Says oldest direct evidence is a baboon's thigh bone, 35 ky, and
a wolf bone, 30 ky. Says no such evidence from Neandertal sites.
(All thos from pg 11 of the book above).

Just data -- you probably have all this stuff...