Mammalia - Cetacea

Full reference: R. Kellogg. 1931. Pelagic mammals of the Temblor Formation of the Kern River region, California. Proceedings of the California Academy of Science 19(12):217-397

Parent taxon: Delphinoidea according to M. D. Uhen 2015

Sister taxa: Albireonidae, Delphinavus, Delphinidae, Graamocetus, Kentriodontidae, Lamprolithax, Miodelphis, Monodontidae, Odobenocetopsidae, Oedolithax, Palaeophocaena, Phocoenidae, Platylithax, Protodelphinus, Sinanodelphis

Subtaxa: Nannolithax gracilis

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Type: Nannolithax gracilis

Ecology: aquatic carnivore