Tribosphenida
Appearance
Tribosphenida Temporal range: Middle Jurassic - Present,
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Kangaroo with her joey | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Clade: | Zatheria |
Clade: | Tribosphenida McKenna, 1975 |
Clades | |
Synonyms | |
Boreosphenida |
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). Its current definition is more or less synonymous with Boreosphenida.[1][2]
References
[change | change source]- ↑ 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.
- ↑ 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.