Zygorhiza

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Mammalia
Subclassis: Theria
Infraclassis: Placentalia
Superordo: Cetartiodactyla
Ordo: Cetacea
Subordo: †Archaeoceti
Familia: Basilosauridae
Genus: Zygorhiza
Species: Z. kochii

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Zygorhiza kochii ("Koch's Yoke-Root") is an extinct species of cetacean.

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

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