After Carroll, 1988, and Lund, 1989, with species from Williams, 1999-2000
<==o †Janassidae Jaekel, 1899 |--o †Fissodus [Cholodus] Miss. Eu. NA. Carb. NA. | |-- †F. bifidus (St. John & Worthen, 1875a) [Cholodus] | |-- †F. inaequalis | |-- †F. sp. | `-- †F. tricuspidatus `--o †Janassa [Acrodus, Byzenos, Climaxodus, Cymatodus, Dictea, Ianassa, ?Peltodus, Strigilina, Thoracodus, Trilobites] Miss. L. Perm. NA. Miss. U. Perm. Eu. L. Perm. Gr. Miss. Perm. EEu. |-- †J. bituminosa (Schlotheim, 1820) |-- †J. clavata M'Coy, 1855 |-- †J. kochi Nielsen, 1932 |-- †J. clarki Lund, 1989 `-- †J. unguicula (Eastman, 1903)
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