Lystrosaurus Was a Survivor of the Permian-Triassic Mass Extinction (image) American Association for the Advancement of Science Share Print E-Mail Caption The ancient mammal Lystrosaurus was a survivor of the Permian-Triassic mass extinction. The specimen shown is part of the Iziko: South African Museum collection (SAM-PK-K8524). Credit [Credit: Kenneth Angielczyk] Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. Share Print E-Mail 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.