Size Comparison of Marsupial Lions (IMAGE) University of New South Wales Caption Size differences between Microleo attenboroughi and the three other genera of marsupial lions, Priscileo, Wakaleo and Thylacoleo. Credit UNSW Usage Restrictions With caption and 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.