Dugonginae
Dugonginae est subfamilia mammalium sirenium .

Systema taxinomicum Animalis 
 Imperium: Eucaryota
 Regnum: Animalia
 Gradus: Metazoa
 Subgradus: Eumetazoa
 Subregnum: Bilateria
 Infraregnum: Eucoelomata
 Supraphylum: Deuterostomia
 Infraphylum: Chordonia
 Phylum: Chordata
 Subphylum: Vertebrata
 Infraphylum: Gnathostomata
 Supraclassis: Tetrapoda
 Infraclassis: Amniota
 Ramus: Mammaliaformes
 Classis: Mammalia
 Subclassis: Theriiformes
 Infraclassis: Holotheria
 Supralegion: Trechnotheria
 Legion: Cladotheria
 Sublegion: Zatheria
 Infralegion: Tribosphenida
 Supracohort: Theria
 Cohort: Placentalia
 Superordo: Afrotheria
 Ordo: Sirenia
 Familia: Dugongidae
 Subfamilia: Dugonginae
 Genus: Bharatisiren (Bajpai & Domning, 1997) 
 Genus: Caribosiren (Reinhard, 1959) 
 Genus: Corystosiren (Domning, 1990) 
 Genus: Crenatosiren (Domning, 1991)
 Genus: Dioplotherium (Cope, 1883) 
 Genus: Dugong (Lacepede, 1799)
 Genus: Rytiodus (Lartet, 1866)
 Genus: Thalattosiren (Sickenburg, 1928) 
 Genus: Xenosiren (Domning, 1989)

Sirenia