They are testing teeth to determine biological sex of prehistoric remains which have previously proven difficult to clearly identify.

This bit is the part most interesting to me:

Second, early 3rd millennium Iberian societies do not display the traits indicative of highly stratified, class-like or state societies identified elsewhere in Bronze Age or Iron Age Europe. As the Valencina record shows, leadership systems in the Iberian Copper Age were at best unstable and financed by a wealth economy rather than a staple economy59. ‘The Ivory Lady’ appears to have drawn her influence, prestige, or power neither from birth, nor from the control of agricultural produce, but from her personal charisma and her achievements.

TLDR: It seems that a society with powerful women may correlate to different social and power structures than male-dominated cultures.