Synonym: Boreosphenida Luo et al. 2001 [objective synonym]
Full reference: M. C. McKenna. 1975. Toward a phylogenetic classification of the Mammalia. Phylogeny of the Primates, Plenum Publishing, New York 21-46
Parent taxon: Zatheria according to E. Panciroli et al. 2018
See also Averianov et al. 2015, Cifelli 1993, Flynn et al. 1999, Luo et al. 2001, Luo et al. 2003, Luo et al. 2011, McKenna 1975, Prothero 1981, Rougier et al. 2007, Sigogneau-Russell 1992, Sweetman et al. 2017 and Wang et al. 1998
Sister taxa: Abelodon, Arguimus, Chunnelodon, Magnimus, Minimus, Mozomuridae, Nanolestes, Palaeoxonodon, Peramura, Prototheria
Subtaxa: Aegialodon Argaliatherium Brasilestes Carinalestes Culicolestes Hypomylos Idiogenomys Kermackiidae Kielantherium Paleomolops Picopsidae Potamotelses Potamotelsidae Theria Tribotherium Zygiocuspis