After McKenna & Bell, 1997 and Dubrovo & Sanders, 2000
<==o †Squalodontoidea Brandt, 1872 |--o †Squalodontidae Brandt, 1872 | |-- †Parasqualodon | |-- †Metasqualodon | |-- †Eosqualodon | |-- †Prosqualodon | |-- †Agriocetus | |-- †Saurocetus | |-- †Colophonodon | |-- †Sulakocetus | |-- †Squalodon [Phocodon, Rhytisodon] | |-- †Kelloggia | |-- †Microcetus sharkovi | |-- †Neosqualodon | |-- †Phoberodon | |-- †Sachalinocetus | `--o Patriocetinae | `--o †Patriocetus (van Beneden, 1865) | |-- †P. sp. indet. | |-- †P. ehrlichi (van Beneden, 1865) | `-- †P. kazakhstanicus Dubrovo & Sanders, 2000 |?-o †Waipatiidae | `-- †Waipatia maerewhenua `--o †Rhabdosteidae [Eurhinodelphidae] |-- †Eurhinodelphis |-- †Macrodelphinus |-- †Ziphiodelphis abeli |-- †Rhabdosteus |-- †Argyrocetus `-- †Phocaenopsis
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. - Dubrovo, I. A. & Sanders, A. E., 2000: A new species of Patriocetus
(Mammalia, Cetacea) from the Late Oligocene of Kazakhstan.
–Journal of Vertebrate Paleontology: Vol. 20, #3, pp. 577-590 - Fordyce, R. E., 2003: Shark-toothed dolphins (Family Squalodontidae).
–iNet: The University of Otago - Department of Geology: http://www.otago.ac.nz/geology/features/paleontology/squalodontidae.html [visited: 2003-11-24] - Fordyce, R. E., 2003: Waipatia maerewhenua - a small archaic dolphin from the Oligocene of New Zealand.
–iNet: The University of Otago - Department of Geology: http://www.otago.ac.nz/geology/features/paleontology/w-maerewhenua.html [visited: 2003-11-24] - McKenna, M. C. & Bell, S. K., eds., 1997: Classification of mammals; above
the species level.
–Columbia University Press, New York, 1997.