Dr. Margot Kuitems (IMAGE) University of Groningen Caption This is Dr. Margot Kuitems, first author of the paper on dating the construction of the Por-Bajin compmlex Credit Ronald Zijlstra Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.