outgroup
Romeria_texana
Romeria_prima
Captorhinus_magnus
Captorhinus_aguti
Captorhinus_laticeps
Rothianiscus
Gansurhinus
Moradisaurus
Labidosaurikos
Labidosaurus
Captorhinikos
Saurorictus
Protocaptorhinus
Rhiodenticulatus
Concordia
Thuringothyris
Paleothyris
Reiszorhinus
Procolophon_trigoniceps
Milleretta_rubidgei
Araeoscelis
Petrolacosaurus
Anthracodromeus
Protorothyris_archeri
Cephalerpeton
Hylonomus
Brouffia
Coelostegus
MESOSAURIDAE
Casea_broilii
Morganucodon
PLACENTA
Kayentatherium
Exaeretodon
Diademodon
Thrinaxodon
Procynosuchus_delaharpeae
Lychosuchus_vanderrieti
Dicynodon_lacerticeps
Gorgonops_torvus
Anteosaurus_magnificus
Biarmosuchus_tener
Sphenacodon
Edaphosaurus_cruciger
Ophiacodon_mirus
Ophiacodon_retroversus
Lanthanosuchus
Acleistorhinus
Owenetta_rubidgei
Pareiasaurus_serridens
Scutosaurus_kapinskii
Anthodon_serrarius
Bradysaurus_baini
Bradysaurus_seeleyi
Macroleter_poezicus
Planocephalosaurus
SQUAMATA
Odontochelys_semitestacea
OTHER_CHELONIA
Proganochelys_quenstedti
Cyamodus_rostratus
Placodus
Simosaurus
KUEHNEOSAURIDAE
Hyperodapedon
Trilophosaurus_buettneri
Rutiodon
Pseudopalatus
Coahomasuchus_kahleorum
Typothorax_coccinarum
Desmatosuchus_haplocercus
Paratypothorax
Protosuchus_richardsoni
CROCODYLIA
DINOSAURIA
Proterochampsa
Erythrosuchus
Proterosuchus
Protorosaurus
CHORISTODERA
Prolacerta
Youngina
Claudiosaurus
Spinoaequalis
Acerosodontosaurus
Hovasaurus
Apsisaurus
Nycteroleter
Lanthanolania
Coelurosauravus
Thalattosaurus_alexandrae
ICHTHYOPTERYGIA
Tanystropheus
Pumiliopareia_pricei
Provelosaurus_americanus
Nanoparia_luckhoffi
Pareiasuchus_nasicornis
Pareiasuchus_peringueyi
Shihtienfenia_permica
Shansisaurus_xuecunensis
Arganaceras_vacanti
Elginia_mirabilis
Sanchuansaurus
Parasaurus_geinitzi
Deltavjatia_mesensis
Embrithosaurus_schwarzi
Nochelesaurus_alexanderi
Bunostegos_akokanensis
Sclerosaurus_armatus
Barasaurus
Eunotosaurus
Colobomycter
Feeserpeton
Eudibamus_cursoris
Belebey_vegrandis
Tokosaurus
Rhipaeosaurus
Bashkyroleter_bashkyricus
Emeroleter
Bashkyroleter_mesensis
Nyctiphruretus
Australothyris
Microleter
Owenetta_kitchingorum
Candelaria
Saurodectes
Sauropareion_anoplus
Coletta_seca
Milleropsis_pricei
Millerosaurus_ornatus
Millerosaurus_nuffieldi
Broomia_perplexa
Eumetabolodan_dongshengensis
Theledectes_perforatus
Kapes
Thelophon_contritus
Timanophon_raridentatus
Thelerpeton_oppressus
Teratophon_spinigenis
Eumetabolodan_bathycephalus
Scoloparia_glyphanodon
Hypsognathus_fenneri
Soturnia_caliodon
Leptopleuron_lacertinum
Neoprocolophon_asiaticus
Phonodus_dutoitorum
Pentaedrusaurus_ordosianus
Tichvinskia_vjatkensis
Phaantosaurus
Pintosaurus_magnidentes
Kitchingnathus_utabeni
Thelegnathus
Koiloskiosaurus
Bolosaurus_striatus
Bolosaurus_grandis
Belebey_chengi
Belebey_maximi
Anomoiodon
Thalassiodracon_hawkinsi
Plesiosaurus_dolichodeirus
Augustasaurus
Bobosaurus
Pistosaurus
Yunguisaurus
Cymatosaurus
Corosaurus
Dactylosaurus
Neusticosaurus_pusillus
Anarosaurus
Sanchiaosaurus
Kwangsisaurus
Chinchenia
Lariosaurus_curionii
Lariosaurus_balsami
Lariosaurus_xingyiensis
Lariosaurus_calcagnii
Lariosaurus_valceresii
Lariosaurus_buzzi
Nothosaurus_mirabilis
Germanosaurus
Keichousaurus
Diandongosaurus
Dianopachysaurus
Qianxisaurus
Wumengosaurus
Hanosaurus
CRYPTOCLIDIA
Pleisiopterys_wildi
Dolichorhynchops_osborni
Edgarosaurus_muddi
Polycotylus_latipinnis
Umoonasaurus_demoscyllus
Leptocleidus
PLIOSAURIDAE
Macroplata_tenuiceps
Rhomalesaurus_megacephalus
Rhomalesaurus_victor
Neusticosaurus_peyeri
Neusticosaurus_edwardsi
Neusticosaurus_toeplitschi
Serpianosaurus
Nothosaurus_haasi
Nothosaurus_tchernovi
Nothosaurus_giganteus
Nothosaurus_jagisteus
Nothosaurus_yangiuanensis
Nothosaurus_youngi
Nothosaurus_edingerae
Nothosaurus_marchicus
Nothosaurus_winterswijkensis
Nothosaurus_juvenilis
Nothosaurus_winkelhorsti
Helveticosaurus
Eusaurosphargis
Saurosphargis
Sinosaurosphargis
Kimmerosaurus
Morturneria
Trinacromerum
Tricleidus
Microcleidus
ELASMOSAURIDAE
Simolestes
Rhomalesaurus_zetlandicus
Attenborosaurus
Eurycleidus
Henodus
Placochelys
Psephoderma
Protenodontosaurus
Macroplacus
Paraplacodus
Cyamodus_kuhnschnyderi
Ceresiosaurus
Silvestorsaurus
Paranothosaurus
Askeptosaurus_italicus
Anshuansaurus_huangguoshuensis
Endennasaurus_acutirostris
Clarazia_schinzi
Hescheleria_ruebeli
Paralonectes_merriami
Agkistrognathus_campbelli
Xinpusaurus_baomaolinensis
Nectosaurus_halius
Thalattosaurus_borealis
Xinpusaurus_suni
Miodentosaurus
Anshuansaurus_wushaensis
Saurosternon
Palaeagama
Hupehsuchus
Macrocnemus
Pamelina
Drepanosaurus
Sophineta
Marmoretta
Orovenator
Galesphyrus
Thadeosaurus
Kenyasaurus
Tangasaurus