Nemacanthus (from , 'to distribute' and , 'spine') is an extinct genus of cartilaginous fish in the family Palaeospinacidae.
The species N. elegans is from the Triassic of Idaho, United States.H. M. Evans. 1904. A new cestraciont spine from the Lower Triassic of Idaho. University of California Publications, Bulletin of the Department of Geology 3(18), pages 397-402
See also List of prehistoric cartilaginous fish genera
References
Maisey, J. G. (1977). "The fossil selachian fishes Palaeospinax Egerton, 1872 and Nemacanthus Agassiz, 1837". Zoological Journal of the Linnean Society. 60 (3): 259–273.
External links