Sphenodontinae
Encyclopedia
In 1996, Reynoso named Sphenodontinae a subfamily of Sphenodontidae. Sphenodontinae has one tribe, named Sphenodontini.
Sphenodontini is the only tribe of the Sphenodontinae subfamily. Its two members are Cynosphenodon
, and the modern Tuatara
.
Sphenodontini
Cynosphenodon
Cynosphenodon is an extinct genus of the family Sphenodontidae from the Middle Jurassic La Boca Formation of Tamaulipas, Mexico. Growth patterns in the teeth of Cynosphenodon suggest its close relationship with the modern tuatara....
, and the modern Tuatara
Tuatara
The tuatara is a reptile endemic to New Zealand which, though it resembles most lizards, is actually part of a distinct lineage, order Sphenodontia. The two species of tuatara are the only surviving members of its order, which flourished around 200 million years ago. Their most recent common...
.