Ceratodus

For the town in Queensland, Australia, see Ceratodus, Queensland. For the living Queensland lungfish, see Neoceratodus.

Ceratodus
Temporal range: 251.2–55 Ma Olenekian-Eocene (Ypresian)
Illustration of Ceratodus by Heinrich Harder
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Class: Dipnoi
Order: Ceratodontiformes
Family: †Ceratodontidae
Genus: †Ceratodus
Agassiz, 1837
Type species
Ceratodus latissimus
Agassiz, 1837[1]
Other species

Many more, see text

Ceratodus (from Greek: κέρας kéras, 'horn' and Greek: ὀδούς odoús 'tooth')[2] is an extinct genus of lungfish. It has been described as a "catch all",[3] and a "form genus"[4] 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.[5] 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.[6] Ceratodus is believed to have become extinct sometime around the beginning of the Eocene Epoch.

  1. ^ Agassiz L., 1837. in Egerton, Catal. Foss. Fish. [n.n.]; (1838), Poiss. Foss., 3, 129.
  2. ^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 28. Retrieved 29 December 2021.
  3. ^ Gottfried, Michael D.; Stevens, Nancy J.; Roberts, Eric M.; O'Connor, Patrick M.; Chami, Remigius (January 2009). "A new Cretaceous lungfish (Dipnoi: Ceratodontidae) from the Rukwa Rift Basin, Tanzania". African Natural History. 5: 31–36. ISSN 2305-7963.
  4. ^ Frederickson, Joseph A.; Cifelli, Richard L. (January 2017). "New Cretaceous lungfishes (Dipnoi, Ceratodontidae) from western North America". Journal of Paleontology. 91 (1): 146–161. Bibcode:2017JPal...91..146F. doi:10.1017/jpa.2016.131. ISSN 0022-3360. S2CID 131962612.
  5. ^ Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (February 2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.
  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