Biology:Ctenacanthus
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Ctenacanthus (from Greek: κτείς kteis, 'comb' and Greek: ἄκανθα akantha, 'spine')[1] is an extinct genus of ctenacanthiform chondrichthyan. Remains have been found in the Bloyd Formation (Carboniferous Period) of Arkansas and the Cleveland Shale (Devonian Period) of Ohio in the United States and in South America.[2][3][4]
Valid species
- Ctenacanthus buttersi St. John & Worthen, 1883
- Ctenacanthus chemungensis Claypole, 1885
- Ctenacanthus concinnus Newberry, 1875
- Ctenacanthus denticulatus McCoy, 1848
- Ctenacanthus formosus Newberry, 1873
- Ctenacanthus harrissi Caster, 1930
- Ctenacanthus lamborni Wells, 1944
- Ctenacanthus major Agassiz, 1843
- Ctenacanthus pellensis St. John & Worthen, 1883
- Ctenacanthus sculptus St. John & Worthen, 1875
- Ctenacanthus terrelli Newberry, 1889
- Ctenacanthus tumidus Newberry, 1889
- Ctenacanthus vetustus Eastman, 1902
- Ctenacanthus wrightii Newberry, 1884
- Ctenacanthus amblyxiphias Cope, 1891
Palaeoecology
Dental microwear texture analysis (DMTA) of C. concinnus teeth shows that the species was an opportunistic feeder that would have eaten a variety of animals, including other chondrichthyans and ectocochleate cephalopods.[5]
See also
- List of prehistoric cartilaginous fish genera
References
- ↑ Roberts, George (1839) (in English). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 38. https://archive.org/details/anetymologicala00robegoog. Retrieved 29 December 2021.
- ↑ Acanthodian fish remains from the Upper Silurian or Lower Devonian of the Amazon Basin, Brazil. Philippe Janvier, Jose Henrique G. Melo, Palaeontology, Aug 1988, Vol 31, part 3
- ↑ Agassiz, Louis (1837). "De genre Ctenacanthus Agass". Contenant l'Histoire de l'Ordre de Placoïdes. Recherches sur les poissons fossiles. 3. Neuchâtel: Petitpierre. pp. 10–12. https://www.biodiversitylibrary.org/page/3725216.
- ↑ "Ctenacanthus". https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=34489.
- ↑ Greif, Merle; Calandra, Ivan; Lautenschlager, Stephan; Kaiser, Thomas M.; Mezane, Mohammed; Klug, Christian (29 January 2025). "Reconstruction of feeding behaviour and diet in Devonian ctenacanth chondrichthyans using dental microwear texture and finite element analyses" (in en). Royal Society Open Science 12 (1). doi:10.1098/rsos.240936. ISSN 2054-5703. PMID 39881788. PMC 11774596. https://royalsocietypublishing.org/doi/full/10.1098/rsos.240936. Retrieved 12 April 2025.
External links
- 3D scans of the skull and dorsal spine of Ctenacanthus, provided by the Cleveland Museum of Natural History
- Fossil Sharks of the Rocky Mountains: Ctenacanthus and other Chondrichthyan Spines and Denticles. Wayne Itano, Boulder, Colorado, Karen Houck and Martin Lockley, University of Colorado, Denver
Template:Chondrichthyan genera Wikidata ☰ Q21279027 entry
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