Tribosphenida is a group (infralegion) of mammals that includes the ancestor of Hypomylos, Necrolestidae, Aegialodontia and Theria (the last common ancestor of marsupials and placentals plus all of its descendants).
| Attributes | Values |
|---|---|
| rdfs:comment |
|
| foaf:depiction | |
| thumbnail | |
| is class of |