Taxonavigation
Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta 
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata 
Subphylum: Vertebrata 
Infraphylum: Gnathostomata 
Megaclassis: Osteichthyes 
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha 
Cladus: Amniota 
Classis: Reptilia 
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida 
Cladus: Sauria 
Infraclassis: Lepidosauromorpha 
Superordo: Lepidosauria
Ordo: Rhynchocephalia 
Familiae: Sphenodontidae - †Gephyrosauridae - †Pleurosauridae
Unplaced genera: 
†Kawasphenodon –
†Sphenocondor
References
Links
Vernacular names
日本語: ムカシトカゲ目
ไทย: ทัวทารา
| For more multimedia, look at Rhynchocephalia on Wikimedia Commons. |