After McKenna & Bell, 1997
<==o †Cetotheriidae |-- †Cetotheriopsis lintianus |-- †Mauicetus |-- †Cophocetus oregonensis Packard & Kellogg, 1934 |-- †Cetotherium |-- †Pelocetus calvertensis |-- †Aglaocetus |-- †Diorocetus |-- †Pinocetus |-- †Tiphyocetus |-- †Metopocetus |-- †Imerocetus |-- †Mesocetus |-- †Herpetocetus |-- †Isocetus |-- †Peripolocetus |-- †Halicetus |-- †Eucetotherium |-- †Cetotheriomorphus |-- †Parietobalaena |-- †Thinocetus |-- †Otradnocetus |-- †Heterocetus |-- †Nannocetus |-- †Mixocetus |-- †Amphicetus |-- †Cephalotropis |-- †Piscocetus |-- †Rhegnopsis |-- †Piscobalaena `?- †Nanisocetus
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. - McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631 - Nowak, R. M., 1991: Walker's Mammals of the World; Part 1.
–The Johns Hopkins University Press, Baltimore and London, 1991, xlviii-642-lxiii - Nowak, R. M., 1991: Walker's mammals of the World; Part 2.
–The Johns Hopkins University Press, Baltimore and London, 1991, xii-643-1629