Tribosphenida

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Tribosphenida
Temporal range: Middle Jurassic - Present, 165–0Ma
Kangaroo with her joey
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Legion: Cladotheria
Sublegion: Zatheria
Infralegion: Tribosphenida
McKenna, 1975
Clades

Tribosphenida is a group (infralegion) of mammals that is defined as including the ancestor of Hypomylos, Necrolestidae, Aegialodontia and Theria (the last common ancestor of marsupials and placentals plus all of its descendants).

External links

Further reading

McKenna, Bell: Classification of Mammal: Above the Species Level

Teun van Rheede, Trijntje Bastiaans, David N Boone, S Blair Hedges, Wilfried W de Jong, Ole Madsen: The Platypus is in its Place: Nuclear Genes and Indels Confirm the Sister Group Relation of Monotremes and Therians.

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