Ceratodus

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Extinct genus of fishes

title: "Ceratodus" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["prehistoric-lungfish-genera", "mesozoic-bony-fish", "paleocene-fish", "eocene-fish", "cloverly-formation", "triassic-fish-of-europe", "jurassic-fish-of-north-america", "cretaceous-fish-of-north-america", "jurassic-fish-of-asia", "late-cretaceous-fish-of-africa", "cretaceous-fish-of-australia", "fossils-of-the-united-states", "fossils-of-england", "fossils-of-china", "fossils-of-egypt", "taxa-named-by-louis-agassiz", "fossil-taxa-described-in-1837"] description: "Extinct genus of fishes" topic_path: "geography/australia" source: "https://en.wikipedia.org/wiki/Ceratodus" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Extinct genus of fishes ::

| fossil_range = Olenekian-Eocene (Ypresian) | image = Ceratodus.jpg| | image_caption = Illustration of Ceratodus by Heinrich Harder | display_parents = 3 | taxon = Ceratodus | authority = Agassiz, 1837 | type_species = Ceratodus latissimus | type_species_authority = Agassiz, 1837 | subdivision_ranks = Other species | subdivision = Many more, see text

Ceratodus (from and ) is an extinct genus of freshwater lungfish that was found worldwide during the Mesozoic Era. 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

The following species are known:

Palaeoecology

Ceratodus likely fed on bivalves, as scarring on the shells of non-marine bivalves from a clay pit near Lipie Śląskie in southern Poland has been attributed to an unsuccessful predatory attack by Ceratodus.

Gallery

File:Ceratodus tooth plates.JPG|Ceratodus tooth plates File:Ceratodus BW.jpg|Ceratodus reconstruction

References

References

  1. Agassiz L., 1837. in Egerton, Catal. Foss. Fish. [n.n.]; (1838), Poiss. Foss., 3, 129.
  2. (1839). "An etymological and explanatory dictionary of the terms and language of geology". Longman, Orme, Brown, Green, & Longmans.
  3. (January 2009). "A new Cretaceous lungfish (Dipnoi: Ceratodontidae) from the Rukwa Rift Basin, Tanzania". African Natural History.
  4. (January 2017). "New Cretaceous lungfishes (Dipnoi, Ceratodontidae) from western North America". Journal of Paleontology.
  5. (February 2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews.
  6. Agnolin, F. L., Mateus O., Milàn J., Marzola M., Wings O., Adolfssen J. S., & Clemmensen L. B. (2018). Ceratodus tunuensis, sp. nov., a new lungfish (Sarcopterygii, Dipnoi) from the Upper Triassic of central East Greenland. Journal of Vertebrate Paleontology. e1439834
  7. Woodward. (1891). "Catalogue of the Fossil Fishes in the British Museum (Natural History)".
  8. "PBDB Taxon".
  9. 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.
  10. Knight W.C. (1898) Some new Jurassic vertebrates from Wyoming: American. Journal of Science, ser. 4, v. 5, p. 186.
  11. Churcher, C. S.. (2001). "A new species of Protopterus and a revision of Ceratodus humei (Dipnoi: Ceratodontiformes) from the Late Cretaceous Mut Formation of eastern Dakhleh Oasis, Western Desert of Egypt". Palaeontology.
  12. Ceratodus elegans n. sp. aus dem [[Stubensandstein]]. P Vollrath, Jahresberichte und Mitteilungen des Oberrheinischen …, 1923
  13. (16 October 2024). "†Ceratodus elegans Vollrath 1923 (lungfish)".
  14. 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.
  15. 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.
  16. Kirkland J.I. (1998) Morrison fishes. Modern Geology, v. 22, p. 503–533.
  17. 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.
  18. Parris D.C., Grandstaff B.S., and Banks N.T. (2011). Lungfishes from the Trinity Group (Cretaceous) of North Texas. Texas Journal of Science, 63.
  19. 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.
  20. 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.
  21. (2022). "Tooth Plates of ''Ceratodus'' (Dipnoi, Ceratodontidae) from the Upper Jurassic Shaximiao Formation of Guang'an, Sichuan Province, China". Acta Geologica Sinica (English Edition).
  22. Minikh, A. O.. (2022). "A New Species of the Genus ''Ceratodus'' (Dipnoi, Ceratodontidae) from the Triassic of the Southern Cis-Urals". Paleontological Journal.
  23. (1 September 2010). "Pathologies of non-marine bivalve shells from the Late Triassic of Poland". [[Lethaia]].

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prehistoric-lungfish-generamesozoic-bony-fishpaleocene-fisheocene-fishcloverly-formationtriassic-fish-of-europejurassic-fish-of-north-americacretaceous-fish-of-north-americajurassic-fish-of-asialate-cretaceous-fish-of-africacretaceous-fish-of-australiafossils-of-the-united-statesfossils-of-englandfossils-of-chinafossils-of-egypttaxa-named-by-louis-agassizfossil-taxa-described-in-1837