Teeth of Carcharhinus obscurus (image) PLOS Share Print E-Mail Caption This is a close up of FMNH 99071 showing how the teeth of Carcharhinus obscurus were attached using braided cord. Credit Drew J, Philipp C, Westneat MW (2013) Shark Tooth Weapons from the 19th Century Reflect Shifting Baselines in Central Pacific Predator Assemblies. PLOS ONE 8(4): e59855. doi:10.1371/journal.pone.0059855. Usage Restrictions With credit to source. 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.