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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Cladus: Archelosauria
Division: Pan-Testudines
Superordo: †Sauropterygia
Ordo: Nothosauria

Overview of familiae; Germanosauridae – Keichousauridae – Nothosauridae – Pachypleurosauridae – Pistosauridae – Simosauridae
Vernacular names

Biology Encyclopedia

Reptiles Images

Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License

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