This taxon is (or may be) paraphyletic
Zhangheotherium quinquecuspidens

Taxonavigation

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Taxonavigation: Symmetrodonta 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Ordo: †"Symmetrodonta"

‎Classis: Mammalia
Ordo: †"Symmetrodonta"
Familiae: (lato sensu): †Amphidontidae – †Bondesiidae – †Kuehneotheriidae – †Shuotheriidae – †Spalacotheriidae – †Tinodontidae – †Thereuodontidae – †Woutersiidae – †Zhangheotheriidae
Familiae: (stricto sensu): †Spalacotheriidae – †Zhangheotheriidae

Name

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"Symmetrodonta" Simpson, 1925: 560

Taxonomic note: phylogenetic analysis implied that "Symmetrodonta" is artificial (paraphyletic) with the symmetrodont molar pattern representing a structural grade that evolved multiple times. The name is still used informally by some researchers for convenience, in a descriptive sense, or restricted to the Spalacotheriidae and Zhangheotheriidae.

References

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Primary references

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Additional references

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Vernacular names

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català: Simetrodonts
English: Symmetrodonts
français: Symmetrodonts
русский: Симметродонты
  For more multimedia, look at Symmetrodonta on Wikimedia Commons.