Actinopterygian and chondrichthyan teeth (IMAGE) PeerJ Caption Actinopterygian and chondrichthyan teeth and jaw elements collected from the Laurier Limestone beds, Keld Member, by acid digestion and fossil sorting (A–E), and surface prospecting (F–I). Credit Actinopterygian and chondrichthyan teeth and jaw elements collected from the Laurier Limestone beds, Keld Member, by acid digestion and fossil sorting (A–E), and surface prospecting (F–I). Usage Restrictions No restrictions. License CC0 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.