It is supported by at least one recent phylogenetic study.

More phylogenetic studies will be needed to resolve these issues.

Some of this classification was not supported by phylogenetic studies that came out later.

Since the revision, phylogenetic studies have been done on some of the tribes.

Prodiplocynodon was not included in a phylogenetic study until 1996.

This group is supported by several recent phylogenetic studies.

Two recent molecular phylogenetic studies have confirmed this classification as natural.

A molecular phylogenetic study in 2002 produced the consensus tree shown below.

Where the classification is already based on phylogenetic studies, the key represents the evolutionary relationships within the group.

The first molecular phylogenetic study to include Medusandra appeared in 2009.