394: Affinities of "hyopsodontids" to elephant shrews and a Holarctic origin of Afrotheria

Affinities of "hyopsodontids" to elephant shrews and a Holarctic origin of Afrotheria. The Afrotheria are a clade of mammals which molecular phylogenies indicate are basal to the placental mammals. A fossil from North America indicates that the clade is not monophyletic. New evolutionary hypotheses will have to be formed and tested as new data come in. Very interesting.