Superregnum: Eukaryota Cladus: 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: Odontoceti Infraordines: Delphinida Superfamiliae: incertae sedis Genera: Heterodelphis - Pachyacanthus
References
* The Paleobiology Database accessed on 4/13/09
Biology Encyclopedia
Mammals Images
Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License
Index