Boreoeutheria
Boreoëutheria sive (Latinius) aliquando Boreotheria (e Graeco βόρειο 'Septentriones' + θεριό 'bestia') est cladus (magnordo) mammalium placentalium.

Systema taxinomicum 
 Imperium: Eucaryota
 Regnum: Animalia
 Gradus: Metazoa
 Subgradus: Eumetazoa
 Subregnum: Bilateria
 Infraregnum: Deuterostomia
 Superphylum: Chordata
 Phylum: Craniata
 Subphylum: Vertebrata
 Infraphylum: Gnathostomata
 Supraclassis: Tetrapoda
 Ramus: Amniota
 Subramus: Synapsida
 Infraramus: Mammaliformes
 Classis: Mammalia
 Subclassis: Theriiformes
 Infraclassis: Holotheria
 Superlegio: Trechnotheria
 Legio: Cladotheria
 Sublegio: Zatheria
 Infralegio: Tribosphenida
 Supracohors: Theria
 Cohors: Placentalia
 Subcohors: Exafroplacentalia
 Magnordo: Boreotheria
 Grandordo: Laurasiatheria
 Grandordo: Euarchontoglires

Superordines 
 Euarchontoglires
 Laurasiatheria

Nexus externi 
 Waddell PJ, Kishino H, Ota R. 2001. A phylogenetic foundation for comparative mammalian genomics. Genome Inform Ser Workshop Genome Inform 12: 141–154
 Placental mammal diversification and the Cretaceous-Tertiary boundary
 Wildman D.E.; Chen C.; Erez O.; Grossman L.I.; Goodman M.; Romero R. 2006. Evolution of the mammalian placenta revealed by phylogenetic analysis. PNAS 103 (9): 3203–3208
 Nikolaev, S., Montoya-Burgos, J.I., Margulies, E.H., Rougemont, J., Nyffeler, B., Antonarakis, S.E. 2007. Early history of mammals is elucidated with the ENCODE multiple species sequencing data. PLoS Genet. 3:e2, doi:10.1371/journal.pgen.0030002.
 Gennady Churakov, Jan Ole Kriegs, Robert Baertsch, Anja Zemann, Jürgen Brosius, Jürgen Schmitz. 2008. Mosaic retroposon insertion patterns in placental mammals
 Goloboff, P.A.; Catalano, S.A.; Mirande, J.M.; Szumik, C.A.; Arias, J.S.; Källersjö, M & Farris, J.S. 2009. Phylogenetic analysis of 73 060 taxa corroborates major eukaryotic groups. Cladistics 25 (3): 211–230

Mammalia