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Platanistidae is a family of containing the extant Ganges river dolphin and Indus river dolphin (both in the genus Platanista) but also extinct relatives from freshwater and marine deposits in the Neogene.L. G. Barnes. 2006. A phylogenetic analysis of the superfamily Platanistoidea (Mammalia, Cetacea, Odontoceti). Beitrage zur Palaontologie 30:25-42
The Amazon river dolphin,
/ref> The extinct odontocete families Allodelphinidae and Squalodelphinidae are closely related to Platanistidae.Boersma, A.; Pyenson, N. D. (2016). " Arktocara yakataga, a new fossil odontocete (Mammalia, Cetacea) from the Oligocene of Alaska and the antiquity of Platanistoidea". Peer J. 4: e2321. doi:10.7717/peerj.2321. PMC 4991871. . Fossils from this clade have been found in deposits in North and South America, Europe, and Central Asia.
Fossil and modern members of Platanistidae, a family of dolphins, share distinctive features such as an elongated, narrow snout and a uniquely shaped bone near the cheek area. The family is divided into two subfamilies: the extinct Pomatodelphininae, known from Miocene marine deposits, and the extant Platanistinae, which includes the South Asian river dolphin Platanista gangetica.
G. Barnes, L. (2006). A Phylogenetic Analysis of the Superfamily Platanistoidea (Mammalia, Cetacea, Odontoceti).
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