Zatheria

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
OrdoTherapsida
Cladus: Theriodontia
Subordo: Cynodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohorts: Theria - †Paralotheria
Vernacular names
català: Zateris
English: Zatherians
español: Zatherios
русский: Затерии
українська: Затерії

Zatheria is a group (sublegion) of mammals that includes the common ancestor of 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

Prototheria→Monotremata

Theriiformes

†Allotheria→†Multituberculata

Holotheria

†Kuehneotheria

Trechnotheria

†Amphiodon

Symmetrodonta

†Zhangheotherium

Cladotheria

†Dryolestoidea

Zatheria

†Peramura

Tribosphenida

†Aegialodontia

Theria

	Metatheria→Marsupialia

	Eutheria→Placentalia

 
References

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.

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.