Ancestor
Derwentia_warreni
Rhytidosteus_capensis
Indobrachyops_panchetensis
Rewana_quadricuneata
Pneumatostega_potamia
Mahavisaurus_australis
Mahavisaurus_dentatus
Peltostega_wimani
Peltostega_erici
Deltasaurus_pustulatus
Deltasaurus_kimberleyensis