Coelacanths: Fossil Fish – An Ancient Swimmer Coelacanth is the common name for an order of fish that includes the oldest living lineage of Sarcopterygii (lobe-finned fish + tetrapods) known to date. Until its recent discovery it was believed that the Coelecanth became extinct 65 million years ago. The coelacanth was thought to have gone extinct with the dinosaurs. Rediscovered […]