We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMolecular phylogenetics and the origins of placental mammals.AuthorsMurphy WJ; Eizirik E; Johnson WE; Zhang YP; Ryder OA; O'Brien SJPublicationNature, 2001, Vol 409, Issue 6820, p614ISSN0028-0836Publication typearticleDOI10.1038/35054550