Ceratodus
Ceratodus (from , 'horn' and 'tooth') was a wide-ranging genus of extinct lungfish. Fossil evidence dates back to the Early Triassic. A wide range of fossil species from different time periods have been found around the world in places such as the United States, Argentina, Greenland, England, Germany, Egypt, Madagascar, China, and Australia. "Ceratodus" is believed to have become extinct sometime around the beginning of the Eocene Epoch. The closest living relative of "Ceratodus" is thought to be the Queensland lungfish, "Neoceratodus forsteri", which means "new "Ceratodus"" in Greek.