Ctenothrissa Explained

Ctenothrissa is a prehistoric genus of marine ray-finned fish in the order Ctenothrissiformes.^[1] It contains a number of species known from the Late Cretaceous (middle Cenomanian to early Turonian) of England and Lebanon.^{[2] [3]}

Taxonomy

The following species are known:

• †C. microcephala (Agassiz, 1837) - Cenomanian to Turonian of England (English Chalk) (=Beryx microcephalus Agassiz, 1837)
• †C. protodorsalis Gaudant, 1978 - Cenomanian of Lebanon (Haqel site of Sannine Formation)
• †C. radians (Agassiz, 1837) - Cenomanian to Turonian of England (English Chalk) (=Beryx radians Agassiz, 1837)
• †C. signifer Hay, 1903 - Cenomanian of Lebanon (Hadjoula site of Sannine Formation)
• †C. vexillifer (Pictet, 1850) - Cenomanian of Lebanon (Haqel site of Sannine Formation) (=Beryx vexillifer Pictet, 1850) (type species)^[4]

These Teleostei are only known from fossils. While they are sometimes included in the superorder Acanthopterygii or Protacanthopterygii, this is neither well-supported, nor is the monophyly of the "Ctenothrissiformes" robustly established. It has instead been suggested by some authors that the supposed order is a paraphyletic assemblage of ancient moderately advanced Teleostei; for example, the ctenothrissiform Aulolepis is found by some authors to be an aulopiform.^{[5] [6]}

See also

• Prehistoric fish
• List of prehistoric bony fish

Bibliography

• (2009): Catalogue of Organisms  - Living Larvae and Fossil Fish. Version of 2009-FEB-05. Retrieved 2009-SEP-28.
• Carroll, R. L. 1988. Vertebrate Paleontology and Evolution. New York: W. H. Freeman & Co.
• M. Gayet, A. Belouze & P. Abi Saad, 2003. Liban Mémoire du Temps. Les Poissons fossiles. Éditions Desiris.
• Patterson, C. 1964. "A review of Mesozoic acanthpterygian fishes, with special reference to those of the English chalk." Phil. Trans. Roy Soc. London 247(B):213-482.
• Woodward, A. S., 1899: Additional notes on some Type specimens of Cretaceous Fishes from Mount Lebanon in the Edinburgh Museum of Science and Art. Annals of Natural History, IV 317-321
• Woodward, A. S., 1899: Note on some Cretaceous clupeoid fishes with pectinated scales (Ctenothrissa and Pseudoberyx). Annals and Magazine of Natural History, series 7 3:489-492
• Woodward, A.S., 1891–1901. Catalogue of Fossil Fishes in the British Museum, Parts 1–4. London: British Museum.

Notes and References

1. Web site: PBDB Taxon . 2024-07-16 . paleobiodb.org.
2. Amalfitano . Jacopo . Giusberti . Luca . Fornaciari . Eliana . Carnevale . Giorgio . 2020-04-03 . UPPER CENOMANIAN FISHES FROM THE BONARELLI LEVEL (OAE2) OF NORTHEASTERN ITALY . Rivista Italiana di Paleontologia e Stratigrafia . en . 126 . 2 . 10.13130/2039-4942/13224 . 2039-4942.
3. Friedman . Matt . Beckett . Hermione T. . Close . Roger A. . Johanson . Zerina . 2016 . The English Chalk and London Clay: two remarkable British bony fish Lagerstätten . Geological Society, London, Special Publications . en . 430 . 1 . 165–200 . 10.1144/SP430.18 . 2016GSLSP.430..165F . 0305-8719.
4. Book: Woodward, Arthur Smith . The Fossil Fishes of the English Chalk . 1902–1912 . Cambridge University Press . 978-1-108-07695-1 . en.
5. Taylor (2009)
6. Delbarre . Daniel J. . 2015 . Anatomy and relationships of †Aulolepis (†Ctenothrissiformes: †Aulolepidae): Implications for deep divergences within eurypterygian fishes . Palaeontographical Society ResearchFund Reports . 3–4.