Zatheria

Zatheria
Temporal range: Middle Jurassic - Holocene, 165–0 Ma
Kangaroo with her joey
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Class: Mammalia
Clade: Cladotheria
Clade: Zatheria
McKenna, 1975
Subgroups

Zatheria is a group (sublegion) of mammals that includes the common ancestor of Arguitheriidae, Arguimuridae, Vincelestidae, Peramuridae and Tribosphenida (living therians plus all of its ancestors).

Phylogeny

Below is a cladogram from Rowe (1988) and McKenna and Bell (1997) showing one hypothesis of mammal relationships:[1][2]

Mammaliaformes 

Morganucodontidae


Mammalia 

PrototheriaMonotremata


Theriiformes

Allotheria→†Multituberculata


Holotheria

Kuehneotheria


Trechnotheria

Zhangheotherium †("Symmetrodonta")


 Cladotheria 

Dryolestoidea


 Zatheria 

Peramura


Tribosphenida

Aegialodontia


 Theria 

MetatheriaMarsupialia



EutheriaPlacentalia











Further reading

References

  1. Rowe, Timothy (1988). "Definition, diagnosis, and origin of Mammalia". Journal of Vertebrate Paleontology. 8 (3): 241–264. doi:10.1080/02724634.1988.10011708. ISSN 0272-4634.
  2. McKenna, Malcolm C.; Bell, Susan K. (1997). Classification of Mammals Above the Species Level. Columbia University Press. pp. 9–10. ISBN 978-0-231-11012-9. Retrieved 16 March 2015.


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