Classification
Chordata [filum]Mammalia [klas]
Cetacea [orde]
Orde Cetacea contains the following taxa:
Balaenopteridae [familie]
Delphinidae [familie]
Eschrichtiidae [familie]
Monodontidae [familie]
Phocoenidae [familie]
Physeteridae [familie]
Ziphiidae [familie]