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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis: Sarcopterygii
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Elapoidea

Familia: Pseudoxyrhophiidae
Subfamiliae: Amplorhininae - Pseudoxyrhophiinae
References

Kelly, C.M.R.; Barker, N.P.; Villet, M.H.; Broadley, D.G. 2009: Phylogeny, biogeography and classification of the snake superfamily Elapoidea: a rapid radiation in the late Eocene. Cladistics, 25: 38–63.
Vidal, N.; Delmas, A.-S.; David, P.; Cruaud, C.; Couloux, A.; Hedges, S.B. 2007: The phylogeny and classification of caenophidian snakes inferred from seven nuclear protein-coding genes. C.R. Biologies, 330: 182–187. PDF

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