Subfamily Physeterinae Flower 1867 (sperm whale)
Mammalia - Cetacea - Physeteridae
Full reference: W. H. Flower. 1867. Description of the skeleton of Inia geoffrensis and the skull of Pontoporia blainvillii, with remarks on the systematic position of these animals in the Order Cetacea. Transactions of the Zoological Society of London 6:87-116
Parent taxon: Physeteridae according to F. C. Whitmore and J. A. Kaltenbach 2008
Sister taxa: Aulophyseter, Aulophyseterinae, Ferecetotherium, Hoplocetinae, Idiophyseter, Kogiopsis, Physeter, Physeterula, Scaldicetus
Subtaxa: none
Ecology: aquatic piscivore-carnivore