Ceratodus

Ceratodus Temporal range: 228–70 Ma PreЄ Є O S D C P T J K Pg N Middle Triassic-Late Cretaceous
Illustration of Ceratodus by Heinrich Harder
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sarcopterygii
Order:	Ceratodontiformes
Family:	Ptychoceratodontidae
Genus:	Ceratodus Agassiz, 1837
Species
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 Middle Triassic 228 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 Maastrichtian stage of the Late Cretaceous, 70 Ma. The closest living relative of Ceratodus is thought to be the Queensland lungfish, Neoceratodus forsteri, which means "new Ceratodus" in Greek.

Species

• C. latissimus (type)
  Agassiz, 1837
• C. africanus
  Haug, 1905
• C. eruciferus
  Cope, 1876 (nomen dubium)
• C. felchi
  Kirkland, 1987 (moved to C. guentheri by Kirkland 1998)
• C. frazieri
  Ostrom, 1970
• C. guentheri
  Marsh, 1878 (moved to Potamoceratodus in 2010 by Pardo et al.)
• C. gustasoni
  Kirkland, 1987
• C. hieroglyphus
  Cope, 1876 (nomen dubium)
• C. humei
  Priem, 1914
• Jurassic C. robustus
  Knight, 1898
• C. szechuanensis
  Young, 1942
• C. fossanovum
  Kirkland, 1998
• C. texanus
  Parris et al. 2014
• C. carteri
  Main et al. 2014
• C. kranzi
  Frederickson et al. 2016^[1]

Gallery

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  Ceratodus tooth plates

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  Ceratodus

References

1. Joseph A. Frederickson, Thomas R. Lipka and Richard L. Cifelli (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.

• Ceratodus at The Paleobiology Database