>>You are under the impression that an older Sphinx translates into >>advanced culture. In fact, you seem to think it is a requirement. This >>could not be further from the truth. All it takes is rudimentary interest or >>reverence in a form to carve it
If you were talking about a small figurine like the 'venus' figures from the prehistoric then I would agree. Something the size of the Sphinx however, must have taken a degree of organisation that most people would categorize as 'advanced' in this context.