Ceratodus

Ceratodus (from κέρας, 'horn' and ὀδούς 'tooth') is an extinct genus of lungfish. It has been described as a "catch all", and a "form genus" used to refer to the remains (typically toothplates) of a variety of lungfish belonging to the extinct family Ceratodontidae. 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.

Species

 * C. latissimus Agassiz, 1837 (type)
 * C. eruciferus Cope, 1876 (nomen dubium)
 * C. hieroglyphus Cope, 1876 (nomen dubium)
 *  C. robustus Knight, 1898
 * C. africanus Haug, 1905
 * C. avus W. H. Ferguson 1906
 * C. humei Priem, 1914
 * C. elegans Vollrath, 1923
 * C. frazieri Ostrom, 1970
 * C. gustasoni Kirkland, 1987
 *  C. fossanovum Kirkland, 1998
 *  C. stewarti Milner and Kirkland, 2006
 *  C. texanus Parris et al., 2011
 *  C. carteri Main et al., 2014
 *  C. kranzi Frederickson et al., 2016
 * C. kirklandi Frederickson & Cifelli, 2016
 * C. molossus Frederickson & Cifelli, 2016
 * C. kempae Frederickson & Cifelli, 2016
 * C. nirumbee Frederickson & Cifelli, 2016
 * C. tunuensis Agnolin et al., 2018
 * C. guanganensis Wang et al., 2022
 * C. shishkini Minikh, 2023