therian eutherian http://purl.bioontology.org/ontology/MESH/D000073566 http://purl.bioontology.org/ontology/SNOMEDCT/388033005 http://purl.obolibrary.org/obo/NCBITaxon_9347 https://en.wikipedia.org/wiki/Eutheria https://species.wikimedia.org/wiki/Eutheria https://www.wikidata.org/wiki/Q17092469 Eutheria One of two mammalian clades with extant members that diverged in the Early Cretaceous or perhaps the Late Jurassic. Except for the North American Virginia opossum, which is a metatherian, all post-Miocene mammals Indigenous to Europe, Africa, Asia, and North America north of Mexico are eutherians. Extant eutherians, their last common ancestor, and all extinct descendants of that ancestor are members of Placentalia. eutherians