Ring-tailed Lemur (Lemur katta )

The Boreoeutheria are a group within the higher mammals ( Eutheria ). They were described in 2001 on the basis of genetic studies as a taxon and include all higher mammals except the Xenarthra and Afrotheria the. They walked in front of about 110 million years ago along with the Xenarthra as Exafroplacentalia from the group of Eutheria forth. Prior to about 100-105 million years ago they split up into the two mammalian superorders Euarchontoglires and Laurasiatheria.


The following cladogram shows the systematic position of the Boreoeutheria:






  • Waddell PJ, Kishino H, Ota R. 2001. A phylogenetic foundation for comparative mammalian genomics. Genome Inform Ser Workshop Genome Inform 12: 141-154
  • Mark S. Springer, William J. Murphy, Eduardo Eizirik, and Stephen J. O'Brien ( Edited by Morris Goodman). 2002 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 JI, Margulies, EH, Rougemont, J., Nyffeler, B., Antonarakis, SE 2007th 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 War, Robert Baertsch, Anja Zemann, Jürgen Brosius, Jürgen Schmitz. , 2008. Mosaic retroposon insertion patterns in placental mammals
  • Mammals
  • Mammalia

Pictures of Boreoeutheria