†subfamily Hydrodamalinae Palmer 1895 (dugong)

Mammalia - Sirenia - Dugongidae

Alternative spelling: Hydrodamalidae

Synonyms: Rhytinea Brandt 1846, Rytinadae Gray 1843, Rytineae Brandt 1833, Rytinidae Girard 1852

Full reference: T. S. Palmer. 1895. The earliest name for Steller's sea cow and Dugong. Science 2(40):449-450

Parent taxon: Dugongidae according to D. P. Domning 2008

See also Barnes et al. 1985, Berta 2017, Domning 1994, Domning 1996, Domning 2018, Domning and Furusawa 1995, Hay 1902, Hay 1930, Heal 1973, Kretzoi 1941, Reinhart 1959, Rice 1998, Scheffer and Rice 1963, Simpson 1932, Takahashi et al. 1986 and Weber 1928

Sister taxa: Anisosiren, Caribosiren, Dugonginae, Eosiren, Eotheroides, Halitheriinae, Halitherium, Halitherium alleni, Halitherium antillense, Halitherium taulannense, Indosiren, Kaupitherium, Lentiarenium, Metaxytherium, Miodugong, Nanosiren, Paralitherium, Priscosiren, Prohalicore, Rytiodinae, Sirenavus, Trachytherium

Subtaxa: Dusisiren Hydrodamalis

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Ecology: aquatic herbivore

Distribution:

• Quaternary of Japan (5 collections), the Russian Federation (3), United States (10: Alaska, California)

• Pliocene of Japan (6), Mexico (2), United States (9: California)

• Hemphillian of United States (1: California)

• Miocene to Pliocene of United States (2: California)

• Miocene of Japan (3), Mexico (2), United States (13: California)

Total: 56 collections each including a single occurrence

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