Symmetrodonta

Taxonavigation

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

Name

"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

Vernacular names

For more multimedia, look at Symmetrodonta on Wikimedia Commons.