| Mammalia Linnaeus, 1758 |
| Artiodactyla Owen, 1848 |
| Cetacea Brisson, 1762 |
| Pelagiceti Uhen, 2008 |
| Neoceti Fordyce & De Muizon, 2001 |
| Mysticeti Flower, 1864 |
| Chaeomysticeti Mitchell, 1989 |
| Thalassotherii Bisconti, Lambert & Bosselaers, 2013 |
| Balaenopteridae Gray, 1864 |
| ArchaebalaenopteraBisconti, 2007 |
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