ammonites
†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

Sister taxa: Anisosiren, Dugonginae, Halitheriinae, Indosiren, Miodugong, Paralitherium, Prohalicore, Rytiodinae, Rytiodus, Sirenavus, Dugong

Subtaxa: Dusisiren, Hydrodamalis

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Ecology: aquatic herbivore