(Tseajaia,(((Casea,Eothyris),((Archaeothyris,Ophiacodon),(Archaeovenator,(Apsisaurus,(Mesenosaurus,(Mycterosaurus,(Elliotsmithia,(Aerosaurus,(Varanops,Varanodon))))))))),(Captorhinus,(Paleothyris,((Petrolacosaurus,Araeoscelis),(Coelurosauravus,((Acerosodontosaurus,Youngina),((Hyperodapedon,(Trilophosaurus,Prolacerta)),(Planocephalosaurus,(Chalarodon_m,Huehuecuetzpalli,Dalinghosaurus))))))))));