Placentalia (nomen ab Owen anno 1837 factum), olim Eutheria (Gill anno 1872), est infraordo mammalium quae placentas habent.

• Imperium: Eukaryota
  • Regnum: Animalia
    • Gradus: Metazoa
      • Subgradus: Eumetazoa
        • Subregnum: Bilateria
          • Infraregnum: Eucoelomata
            • Supraphylum: Deuterostomia
              • Infraphylum: Chordonia
                • Phylum: Chordata
                  • Subphylum: Vertebrata
                    • Infraphylum: Gnathostomata
                      • Supraclassis: Tetrapoda
                        • Infraclassis: Amniota
                          • Ramus: Mammaliaformes
                            • Classis: Mammalia
                              • Subclassis: Theriiformes
                                • Infraclassis: Holotheria
                                  • Supralegio: Trechnotheria
                                    • Legio: Cladotheria
                                      • Sublegio: Zatheria
                                        • Infralegio: Tribosphenida
                                          • Supracohors: Theria
                                            • Cohort: Placentalia (=Eutheria)
                                              • Magnordo: Epitheria
                                              • Magnordo: Xenarthra
                                              • Ordo: ‡ Bibymalagasia
                                              • Genus: † Aspanlestes
                                              • Genus: † Beleutinus
                                              • Genus: † Bulaklestes
                                              • Genus: † Cretasorex
                                              • Genus: † Daulestes
                                              • Genus: † Eodesmatodon
                                              • Genus: † Eomaia
                                              • Genus: † Eutrochodon
                                              • Genus: † Idiogenomys
                                              • Genus: † Helioseus
                                              • Genus: † Kumsuperus
                                              • Genus: † Neodesmostylus
                                              • Genus: † Obtususdon
                                              • Genus: † Sorlestes
                                              • Genus: † Telacodon
                                              • Genus: † Tingamarra
                                              • Genus: † Veratalpa
                                              • Genus: † Wanotherium

• Goloboff, P. A., S. A. Catalano, J. M. Mirande, C. A. Szumik, J. S. Arias, M. Källersjö, et J. S. Farris. 2009. "Phylogenetic analysis of 73 060 taxa corroborates major eukaryotic groups." Cladistics 25(3):211–230.
• McKenna, M. C., et S. K. Bell. 1997. Classification of Mammals Above the Species Level. Novi Eboraci: Columbia University Press.
• Vaughan, Terry A., James M. Ryan, et Nicholas J. Czaplewski. 2000. Mammalogy: Fourth Edition. Saunders College Publishing. ISBN 0-03-025034-X.

• Afrotheria
• Exafroplacentalia
• Boreoeutheria

Situs scientifici:  • Encyclopedia of Life • Fossilworks

Vide "Placentalia" apud Vicispecies.

Vicimedia Communia plura habent quae ad Placentalia spectant.

• Placentalia apud Systema Natura
• eutheria apud Animaldiversity

Haec stipula ad mammale spectat. Amplifica, si potes!