Tribosphenida

Tribosphenidans
Temporal range: Early Cretaceous–Recent
Eomaia fossil
Kangaroo with her joey
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Zatheria
Clade: Tribosphenida
McKenna, 1975
Clades

Tribosphenida is a group (infralegion) of mammals that includes the ancestor of Hypomylos, Aegialodontia and Theria (the last common ancestor of marsupials and placentals plus all of its descendants). It belongs to the group Zatheria.[1] The current definition of Tribosphenida is more or less synonymous with Boreosphenida.[2][3]

  1. ^ Panciroli E; Roger B.J. Benson; Richard J. Butler (2018). "New partial dentaries of amphitheriid mammalian Palaeoxonodon ooliticus from Scotland, and posterior dentary morphology in early cladotherians". Acta Palaeontologica Polonica. 63 (2). doi:10.4202/app.00434.2017.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ Kielan-Jaworowska, Zofia; Cifelli, Richard L; Luo, Zhe-Xi (2004). Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure. New York: Columbia University Press. ISBN 978-0-231-11918-4.
  3. ^ Luo, Zhe-Xi; Cifelli, Richard L.; Kielan-Jaworowska, Zofia (2001). "Dual origin of tribosphenic mammals". Nature. 409 (6816): 53–57. doi:10.1038/35051023. PMID 11343108. S2CID 4342585.