Ctenacanthus (from , 'comb' and , 'spine') 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.
Valid species
- Ctenacanthus buttersi <small>St. John & Worthen, 1883</small>
- Ctenacanthus chemungensis <small>Claypole, 1885</small>
- Ctenacanthus concinnus <small>Newberry, 1875</small>
- Ctenacanthus denticulatus <small>McCoy, 1848</small>
- Ctenacanthus formosus <small>Newberry, 1873</small>
- Ctenacanthus harrissi <small>Caster, 1930</small>
- Ctenacanthus lamborni <small>Wells, 1944</small>
- Ctenacanthus major <small>Agassiz, 1843</small>
- Ctenacanthus pellensis <small>St. John & Worthen, 1883</small>
- Ctenacanthus sculptus <small>St. John & Worthen, 1875</small>
- Ctenacanthus terrelli <small>Newberry, 1889</small>
- Ctenacanthus tumidus <small>Newberry, 1889</small>
- Ctenacanthus vetustus <small>Eastman, 1902</small>
- Ctenacanthus wrightii <small>Newberry, 1884</small>
- Ctenacanthus amblyxiphias <small>Cope, 1891</small>
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.
See also
References
External links