| Current rank | : | Metatheria (Infraclass) Huxley, 1880 | |
Ref: C.J. Burgin et al., 2020: table 2 (p. 26). [inferred] |
| Former rank | : | Metatheria (Subclass) Huxley, 1880 | |
Ref: A.O. Averianov & A.V. Lopatin, 2011: 34. [inferred] |
| Former rank | : | Metatheria (Infraclass) Huxley, 1880 | |
Ref: A.O. Averianov & A.V. Lopatin, 2011: 34. [inferred] |