(Dendrerpeton_acadianum,((Eryops_megacephalus,(Trematopidae,Dissorophidae)),(Trimerorhachis_spp,(Sclerocephalus_haueseri,((Archegosaurus_decheni,Platyoposaurus_stuchenbergi),(Melosaurus_spp,((Triphosuchus,Konzhukovia_vetusta),(Peltobatrachus_pustulatus,(Australerpeton_cosgriffi,(((Arachana_nigra,Lydekkerina_huxleyi),((Trematosauridae,(Benthosuchus_sushikini,(Eryosuchus_pronus,Mastodonsaurus_giganterus))),(Rhytidosteidae,(Koskinonodon_perfectus,Pelorocephalus_spp)))),(Rhinesuchus_broomianus,(Rhineceps_nyasaensis,Uranocentrodon_senekalensis)))))))))))); (Dendrerpeton_acadianum,((Eryops_megacephalus,(Trematopidae,Dissorophidae)),(Trimerorhachis_spp,(Sclerocephalus_haueseri,((Archegosaurus_decheni,Platyoposaurus_stuchenbergi),(Melosaurus_spp,((Triphosuchus,Konzhukovia_vetusta),(Peltobatrachus_pustulatus,(Australerpeton_cosgriffi,((Arachana_nigra,(Lydekkerina_huxleyi,((Trematosauridae,(Benthosuchus_sushikini,(Eryosuchus_pronus,Mastodonsaurus_giganterus))),(Rhytidosteidae,(Koskinonodon_perfectus,Pelorocephalus_spp))))),(Rhinesuchus_broomianus,(Rhineceps_nyasaensis,Uranocentrodon_senekalensis))))))))))));