Details

Autor(en) / Beteiligte

• Murphy, William J.
• Eizirik, Eduardo
• O'Brien, Stephen J.
• Madsen, Ole
• Scally, Mark
• Douady, Christophe J.
• Teeling, Emma
• Ryder, Oliver A.
• Stanhope, Michael J.
• de Jong, Wilfried W.
• Springer, Mark S.

Titel

Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics

Ist Teil von

• Science (American Association for the Advancement of Science), 2001-12, Vol.294 (5550), p.2348-2351

Ort / Verlag

Washington, DC: American Society for the Advancement of Science

Erscheinungsjahr

2001

Quelle

MEDLINE

Beschreibungen/Notizen

• Molecular phylogenetic studies have resolved placental mammals into four major groups, but have not established the full hierarchy of interordinal relationships, including the position of the root. The latter is critical for understanding the early biogeographic history of placentals. We investigated placental phylogeny using Bayesian and maximum-likelihood methods and a 16.4-kilobase molecular data set. Interordinal relationships are almost entirely resolved. The basal split is between Afrotheria and other placentals, at about 103 million years, and may be accounted for by the separation of South America and Africa in the Cretaceous. Crown-group Eutheria may have their most recent common ancestry in the Southern Hemisphere (Gondwana).