After Carroll, 1988, Long 1990 and Williams, 1999-2000
<==o †Edestidae Jaekel, 1899 |--o †Edestus [Edestes, Edestodus, Protospirata] Penn. NA. Eu. EEu. | |-- †E. heinrichi | |-- †E. giganteus Newberry, 1888 | |-- †E. minor | |-- †E. sp. | `-- †E. vorax Leidy, 1855 |--o †Helicampodus U. Perm. Ind. L. Trias. WAs. | |-- †H. ealoni Obruchev, 1965c | `-- †H. kokeni Branson, 1935 |?-o †ListracanthusPenn. Eu. | |-- †L. hystrix Newberry & Worthen, 1870a | `-- †L. wardi |-- †Lestrodus newtoni (Woodward, 1917) [Edestus] Penn. Eu. |?- †Metaxyacanthus rossicus (Inostranzeff, 1888) [Dactylodus] Carb. As. |-- †Parahelicampodus spaercki Nielsen, 1952, L. Trias. Gr. |--o †Physonemus McCoy, 1848 | |-- †P. arcuatus McCoy, 1848a | |-- †P. germatus | |-- †P. gigas | |-- †P. mirabilis St. John & Worthen, 1875 | `-- †P. sp. |?- †Prospiraxis `-- †Syntomodus abbreviatus Obruchev, 1864, U. Perm. EAs.
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. - Long, J. A., 1995: The Rise of Fishes: 500 million years of evolution.
–Johns Hopkins University Press, Baltimore & London, pp. 1-223 - 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