Find the word definition

Wikipedia
Gomphodontosuchinae

Gomphodontosuchinae is a subfamily of Triassic traversodontid cynodonts. It includes the genera Gomphodontosuchus, Exaeretodon, Menadon, and Scalenodontoides.

Below is a cladogram showing the phylogenetic relationships of gomphodontosuchines from Kammerer et al. (2008):