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