Mammalia - Cetacea - Physeteridae

Full reference: R. Kellogg. 1925. Two physeteroid whales from California. Contributions to Palaeontology from the Carnegie Institution of Washington 348(1):1-35

Parent taxon: Physeteridae according to M. D. Uhen et al. 2008

Sister taxa: Aulophyseter, Aulophyseterinae, Ferecetotherium, Hoplocetinae, Kogiopsis, Physeter, Physeterinae, Physeterula, Scaldicetus

Subtaxa: Idiophyseter merriami

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Type: Idiophyseter merriami

Ecology: aquatic piscivore-carnivore