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Riorajini

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Superordo: Rajomorphii
Ordo: Rajiformes
Superfamilia: Rajoidea
Familia: Rajidae
Subfamilia: Arhynchobatinae
Tribus: Riorajini
Genera: Atlantoraja - Rioraja

References

* Last, P.R.; Yearsley, G.K. 2002: Zoogeography and relationships of Australasian skates (Chondrichthyes: Rajidae). Journal of biogeography, 29: 1627-1641.

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Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License