Reptile Family Tree - Peters 2017 1151 taxa, 231 characters Note: 100 Eldeceeon 1990.7.1 67 Eldeceeon holotype This tree does not support DNA topologies over 100 91 Romeriscus Diplovertebron long phylogenetic distances. 85 84 Bystrowiella Certain dental traits are convergent and do not define clades. 67 Solenodonsaurus 100 Chroniosaurus 94 Chroniosaurus PIN3585/124 Chroniosuchus Cheirolepis 58 Eusthenopteron 94 Westlothiana Gogonasus Casineria 99 Osteolepis 84 Brouffia 93 77 Coelostegus 93 98 Pholidogaster Paleothyris Colosteus 91 78 Hylonomus 98 Panderichthys 66 Anthracodromeus Tiktaalik Protorothyris MCZ1532 Greererpeton 87 85 Protorothyris CM 8617 95 95 Koilops 54 Spathicephalus 87 Protorothyris MCZ 2149 Trimerorhachis 80 Vaughnictis 86 Acroplous 62 82 96 72 Dvinosaurus 80 Elliotsmithia 96 Batrachosuchus Apsisaurus Gerrothorax 51 85 Aerosaurus Neldasaurus 86 Varanops 81 95 Trematosaurus 67 90 Varanodon 60 Metoposaurus 75 85 Varanosaurus FMNH PR 1760 96 Rhineceps Parotosuchus 84 Varanosaurus BSPHM 1901 XV20 96 Archaeothyris 96 Wantzosaurus 89 Trematosaurus long rostrum Ophiacodon 77 Ossinodus 82 Pantelosaurus 97 Haptodus 95 Acanthostega <50 MGUH-VP-8160 82 Secodontosaurus 76 71 100 Dimetrodon 94 Pederpes 97 Sphenacodon 89 Whatcheeria Ianthodon Crassigyrinus 85 92 Edaphosaurus 98 Deltaherpeton 99 63 Ventastega 80 82 Ianthasaurus Glaucosaurus 100 Baphetes 50 Cutleria Megalocephalus Stenocybus 69 Sclerocephalus smns90055 99 62 IVPP V18117 Iberospondylus 91 Kenyasaurus Eryops 87 62 71 95 Nigerpeton 82 Galechirus 99 Saharastega 52 Suminia 83 Venjukovia Ichthyostega 97 80 94 Eodicynodon Proterogyrinus 91 100 Dicynodon Eoherpeton 95 Hipposaurus 98 100 Neopteroplax Biarmosuchus Anthracosaurus 75 100 Titanophoneus Tulerpeton 100 Procynosuchus 86 Eucritta Ariekanerpeton 100 Thrinaxodon 99 Prozostrodon Kotlassia 100 86 95 Seymouria 100 Probainognathus 97 Discosauriscus 96 94 Chiniquodon 95 Castorocauda 72 Makowskia 98 78 Seymouria.tadpole 96 Haldanodon Liaoconodon Utegenia 88 Pachygenelus 58 90 Balanerpeton 100 Therioherpeton 85 92 Caerorhachis Sinoconodon 87 Megazostrodon 100 99 Amphibamus Brasilodon Hadrocodium Platyrhinops 76 100 58 Haramiyavia 93 Brasilotherium 87 Dendrerpeton 100 Chaliminia 100 86 Kuehneotherium Tersomius Riograndia 69 96 91 96 Akidolestes Acheloma Oligokyphus Ornithorhynchus Platyhistrix 54 82 Kayentatherium 99 Ecolsonia Heleosaurus 87 100 Tritylodon 100 Juramaia 95 65 Tambachia 81 Mycterosaurus FMNH UC169 58 98 Stegops 99 95 Cronopio Nikkasaurus Spinolestes 79 Dissorophus 100 91 Acristatherium Cacops 79 81 Mesenosaurus PIN 158/1 100 Jeholodens Ukhaatherium 89 Gobiconodon Broiliellus 94 Niaftasuchus 92 Repenomamus robustus 72 Didelphis 86 100 72 Georgenthalia 88 Archaeovenator 83 Repenomamus giganticus 96 Eomaia Yanoconodon Agilodocodon <50 Micromelerpeton 100 Doleserpeton 95 Orovenator Maotherium Arctocyon 96 Pyozia 71 Amphicyon 92 Apateon Gerobatrachus 100 Broomia Thylacinus 95 65 Andrias Milleropsis BPI-720 <50 Hyaenodon 71 82 89 88 Celtedens 58 Ernanodon 64 Rana 98 Erpetonyx 74 60 68 Deltatheridium 100 Utaherpeton Eudibamus 96 Borhyaena <50 Didelphodon <50 Tuditanus 100 Aphelosaurus Kirktonecta 66 73 Thylacosmilus <50 100 Petrolacosaurus 76 92 90 72 Oxyaena 99 Batropetes Araeoscelis Rhynchonkos Vincelestes 73 Spinoaequalis 97 Micraroter Euryodus primus 87 Galesphyrus 70 Anebodon Youngina BPI 3859 Notoryctes 94 91 77 96 Sauropleura 85 Acerosodontosaurus Balbaroo Ptyonius 74 85 72 85 Thadeosaurus 52 Proargyrolagus 93 Pantylus 100 Tangasaurus Macropus 76 60 Scincosaurus Hovasaurus 95 Thylacoleo 83 Batrachiderpeton 90 Claudiosaurus Vombatus 92 100 Keraterpeton 87 <50 Adelosaurus Paedotherium 98 Diceratosaurus 74 Interatherium 100 Diplocaulus 100 98 Atopodentatus <50 <50 <50 Sinosaurosphargis 60 Vintana Diploceraspis Acherontiscus 100 Groeberia 78 72 Largocephalosaurus Rileymillerus Omphalosaurus 71 Pyrotherium 82 100 Phlegethontia CGH129 100 Toxodon 100 Eurygenium 94 Phlegethontia AMNH6966 Anarosaurus 77 Microbrachis 91 Lethiscus Diandongosaurus 86 77 97 Adelospondylus Oestocephalus Palatodonta 76 Pappochelys 98 Dromiciops Adelogyrinus 98 Asioryctes long rostrum 71 <50 Palacrodon 93 Chinlestegophis Asioryctes holotype 83 99 Brachydectes 99 Majiashanosaurus 94 Paraplacodus Monodelphis domestica 88 Lysorophus 97 88 Reptilia Placodus inexpectatus Docofossor 100 Eocaecilia 99 96 Dermophis 72 97 83 Placodus gigas Volaticotherium Silvanerpeton 98 Henodus 97 98 Ectocion UM 8615 Gephyrostegeus bohemicus 100 Placochelys Cyamodus 60 86 99 Vulpavus 84 64 Pachypleurosaurus Deltatherium 95 96 Protictis 100 92 91 Qianxisaurus Urumqia 86 Nandinia 83 Cartorhynchus 88 Bruktererpeton 57 Sclerocormus Procyon 63 97 Thuringothyris MNG 7729 94 Keichousaurus 98 Talpa 85 82 Thuringothyris MNG 10183 Dianmeisaurus Herpestes Hanosaurus 88 Mustela 79 Lariosaurus 77 100 Stylinodon Saurorictus 59 Corosaurus 90 88 78 Psittacotherium 99 99 89 Nothosaurus 70 Cephalerpeton Pujilia Opisthodontosaurus 81 Wangosaurus 92 62 80 98 Simosaurus 96 Phoca Reiszorhinus 60 Palaeosinopa 85 Anningsaura 75 100 Concordia KUVP 8702a Pistosaurus Concordia KUVP 96/95 92 94 Miacis 96 Yunguisaurus Hyopsodus Romeria primus 75 81 76 93 100 Plesiosaurus 97 Enaliarctos 74 Romeria texana 100 Trinacromerum Zalophus Protocaptorhinus 99 Brachauchenius 66 89 Panthera Paracaptorhinus Kronosaurus 99 86 97 Crocuta 96 Eocaptorhinus 94 Canis 99 Captorhinus 61 Psilotrachelosaurus Proteles Labidosaurus 69 PIMUZ AIII 0192 96 SMF R 4710 70 Palaechthon 96 Stereosternum Cynocephalus 99 100 Limnoscelis 76 Brazilosaurus holotype Chriacus Mesosaurus 94 82 Orobates Onychonycteris Tseajaia Serpianosaurus 92 79 Concavispina 56 95 Pteropus 98 Tetraceratops 94 Rousettus 83 98 Xinpusaurus kohi Milleretta RC14 77 Xinpusaurus suni Zhangheotherium 99 Milleretta RC70 87 Thalattosaurus 99 Metachcheiromys 100 100 79 Endennasaurus Manis 90 Feeserpeton Clarazia 50 Australothyris 83 Askeptosaurus <50 99 Eocasea 68 Anshunsaurus 90 ?Hapalodectes IVPP V5235 73 Delorhynchus 100 Miodentosaurus Ptilocercus 100 63 85 Microleter Eusaurosphargis juvenile Notharctus 72 91 100 Eusaurosphargis holotype 97 Acleistorhinus Rooneyia Eunotosaurus 100 Helveticosaurus 82 Vancleavea 68 78 Tarsius 88 Oedaleops Darwinius 84 Eothyris Wumengosaurus 97 73 94 94 Proconsul 91 Colobomycter vaughni Thaisaurus 100 81 Xinminosaurus Homo sapiens Colobomycter pholeter 93 Datheosaurus Utatsusaurus 63 Tupaia 81 93 87 62 98 Shastasaurus alexandrae 74 Ennatosaurus 87 94 Macroscelides 84 Casea 98 Shastasaurus pacificus UCMP 9017 Chrysochloris Eohupehsuchus brevicollis 91 100 Cotylorhynchus 99 97 Necrolestes 96 Parahupehsuchus 98 Diadectes CM25471 Hupehsuchus 96 Apatemys Grippia Trogosus 71 Silvadectes absitus MNG 8853 97 Phonodus 98 88 Mikadocephalus Scutisorex 67 92 YGMIRSPCV03108 99 96 Bolosaurus 79 96 Limnogale Parvinatator Microgale cowani Belebey 86 Chaohusaurus 83 98 Oradectes sanmiguelensis 86 Potamogale 79 Besanosaurus Micropotamogale 58 Diadectes UC706 Qianichthyosaurus CMNH V1412 Diadectes sideropelicus 64 Qianichthyosaurus IVPP V11839 52 98 Zalambdalestes 52 Solenodon Procolophon 91 Phalarodon fraasi 60 57 65 53 85 Henkelotherium 69 98 Scolaparia NSM 99 GF82.1 94 Contectopalatus 98 Leptopleuron 'Phalarodon' nordenskioeldii 79 Nambaroo Gomphos 99 Pentaedrusaurus Mixosaurus 100 80 57 66 Cymbospondylus petrinus 58 Oryctolagus Hypsognathus 51 92 Shonisaurus sikanniensis 86 Brachyerix Stephanospondylus 91 Guanlingsaurus GNG dq-50 Erinaceus 52 Guanlingsaurus YGMR SPC V03107 93 87 Provelosaurus Echinops Deltavjatia KPM232 73 Wimania 68 81 Guizhouichthyosaurus tangae IVPP V 11853 Maiopatagium Scutosaurus 84 'Cymbospondylus' buchseri 98 63 79 75 Vilevolodon 66 Bradysaurus NHMW Shonisaurus popularis 96 93 77 Anthodon Shenshou 91 Ichthyosaurus communis Pareiasuchus 91 Ophthalmosaurus 97 Paramys 58 71 Pumiliopareia Leptonectes tenuirostris 97 Rattus 99 Sclerosaurus 75 Hauffiopteryx 87 Mus 75 76 Arganaceras 89 BRLSI M1399 91 Megaconus 91 Youngina SAM K7710 Eurhinosaurus Odontochelys Youngina BPI 375 97 Rugosodon 89 88 Kryptobaatar 81 79 Trionyx Prolacerta AMNH 9502 86 100 Ocepechelon 68 Ixalerpeton Ptilodus Bunostegos Czatkowiella <50 Carpolestes 71 80 71 Malerisaurus Paulchoffatia Elginia 82 88 Prolacerta BPI 1/471 61 88 Ignacius 69 Ozimek Taeniolabis Niolamia 53 58 98 Meiolania Protorosaurus NHMW 1943I4* 67 Plesiadapis <50 84 Boreopricea Daubentonia 88 Proterochersis 77 57 Jaxtasuchus Proganochelys <50 <50 Protorosaurus NMK S 180 Maelestes 53 89 Kayentachelys 96 Protorosaurus WMsN P47361 86 ?Hapalodectes IVPP V2385 93 Mongolochelys Pamelaria 93 Anagale Chubutemys 87 Leptictis 99 Chelonia Youngina TM 3603 91 100 Youngopsis rubidgei RC90 95 67 Rhynchocyon Santanachelys Sinonyx 100 Youngopsis kitchingi TM1490 67 92 Dermochelys 74 Harpagolestes macrocephalus Youngoides RC91 84 Macrochelys temminckii Andrewsarchus 90 87 Youngina AMNH 5561 Terrapene carolina 100 Youngoides UC1528 Hemicentetes 67 87 Foxemys 82 100 Tenrec Carettochelys 58 Leptictidium 95 71 67 69 Pelomedusa 89 Proterosuchus BPI 1 4016 Indohyus Araripemys 100 87 100 Chasmatosaurus QR 880C.500 91 Pakicetus Chelus 95 91 Chasmatosaurus SAM PK 11208 Maiacetus Chasmatosaurus TM 201 100 Bashkyroleter 75 Zygorhiza 72 Proterosuchus RC96 98 96 NMV P252567 Macroleter 95 Chasmatosaurus NMQR 1484 72 98 Aetiocetus 75 Emeroleter 71 Teyujagua Lanthanosuchus 99 Physeter Elaphrosuchus RC59 Orcinus 89 96 Nycteroleter Nyctiphruretus holotype 84 Onychodectes 78 Nyctiphruretus PIN 4659/1 93 Proterosuchus SAMPKK10603 Doswellia <50 Saurodectes 89 Alcidedorbignya 97 96 Ectoconus Owenetta rubidgei