Prorastomus

Prorastomus (binomen ab Owen, 1855) est exstincta sireniorum familia.

 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: Prorastomidae
 Genus: Prorastomus (Owen, 1855)

categoria:Sirenia