After Carroll, 1988, and Lund, 1989, with species from Williams, 1999-2000
<==o †Petalodontiformes [Bradyodontii] |?- †Paracymatodus |--o †Janassoidei | `-- †Janassidae Jaekel, 1899 `--o †Petalodontoidei |-- †Pristodontidae Woodward, 1889 `--+-- †Petalodontidae Newberry & Worthen, 1866 `--o †Belantseidae Lund, 1989 |?-o †Ctenoptychius [polyphyletic?] | |-- †C. pectinatus (Agassiz, 1833-1844) | |-- †C. limatulus | `-- †C. apicalis |-- †Netsepoye hawesi Lund, 1989 `--o †Balantsea Lund, 1989 |-- B. montana Lund, 1989 `-- B. occidentalis St. John & Worthen, 1875 [Ctenopetalus occidentalis St. John & Worthen, 1875; Ctenoptychius occidentalis]
Reference(s):
- Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - Carroll, R. L., 1988: Appendix. 594-648
in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - Frickhinger, K. A., 1995: Fossil Atlas – Fishes.
–Mergus – Publishers for Natural History and Pet Books, Hans A. Baensch, Malle, Germany, 1-1088 - Long, J. A., 1995: The Rise of Fishes: 500 million years of evolution.
–Johns Hopkins University Press, Baltimore & London, pp. 1-223 - Lund, R., 1989: New petalodonts (Chondrichthyes) from the Upper Missisippian Bear Gulch Limestone (Namurian E2b) of Montana. –Journal of Vertebrate Paleontology: Vol. 9, #3, pp. 350-368
- Nelson, J. S., 1994: Fishes of the world.
–John Wiley & Sons Inc., New York, 1994, xx-600 - Williams, G. S., 1999-2000: A Listing of Fossil Sharks and Rays of the World.
–iNet: Gainesville's Creek Fossils: Euselachii: http://www.afn.org/~afn02877/eusel.html