C. latissimus (type)
Agassiz, 1837 Many more, see text
Ceratodus (Greek for "horned tooth") was a wide-ranging genus of extinct lungfish. Fossil evidence dates back to the Late Triassic 227 million years ago. A wide range of fossil species from different time periods have been found around the world in places such as the United States, Argentina, 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.
^Cope E.D. (1876) Descriptions of some vertebrate remains from the Fort Union beds of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia, v. 1876, p. 248–261.
^Knight W.C. (1898) Some new Jurassic vertebrates from Wyoming: American. Journal of Science, ser. 4, v. 5, p. 186.
^Ostrom J.H. (1970) Stratigraphy and paleontology of the Cloverly Formation (Lower Cretaceous) of the Bighorn Basin area, Montana and Wyoming: Peabody Museum of Natural History Bulletin, v. 35, 234 p.
^Kirkland J.I. (1987) Upper Jurassic and Cretaceous lungfish tooth plates from the Western Interior, the last dipnoan faunas of North America. Hunteria, v. 2, p. 1–16.
^Kirkland J.I. (1998) Morrison fishes. Modern Geology, v. 22, p. 503–533.
^Milner A.C., and Kirkland J.I. (2006). Preliminary review of the Early Jurassic (Hettangian) freshwater Lake Dixie fish fauna in the Whitmore Point Member, Moenave Formation in southwestern Utah. New Mexico Museum of Natural History and Science Bulletin, v. 37, p. 510–521.
^Parris D.C., Grandstaff B.S., and Banks N.T. (2011). Lungfishes from the Trinity Grop (Cretaceous) of North Texas. Texas Journal of Science, 63.
^Main D.J., Parris D.C., Grandstaff B.S., and Carter B. (2014). A new lungfish (Dipnoi: Ceratodontidae) from the Cretaceous Woodbine Formation, Arlington Archosaur Site, north Texas. Texas Journal of Science, v. 63, p. 283–298.
^Frederickson J.A., Lipka T. R., and Cifelli R.L. (2016). A new species of the lungfish Ceratodus (Dipnoi) from the Early Cretaceous of the eastern U.S.A. Journal of Vertebrate Paleontology. Online edition: e1136316. doi:10.1080/02724634.2016.1136316.
^Frederickson J.A. and Cifelli R.L. (2016) New Cretaceous lungfishes (Dipnoi, Ceratodontidae) from western North America. Journal of Paleontology.