Sirenia

Duo manati.

Taxonomia

Regnum:	Animalia
Phylum:	Chordata
Classis:	Mammalia
Ordo:	Sirenia

Familiae

Dugongidae
Trichechidae

Sīrēnia(-orum,n.) suntanimalia mammifera herbivora aquaeorariae.^?Adaptationes aquaticasevolverunt:bracchiahabent, qui in remulos mutaverunt,cruracarent, pingues sunt, et crania quae multum mutata sunt et quorumdentitiopermaxime deminuta est.Mamillassubalares habent.

TrichechidaeaDugongidisforma etcraniietcaudaevariant.

Taxinomia

ORDO SIRENIA
- FamiliaDugongidae
  - Dugon,Dugong dugon
  - Hydrodamalis,Hydrodamalis gigas(exstincta)
- FamiliaTrichechidae:manati
  - Manatus Caribbeanus,Trichechus manatus
  - Manatus Africanus,Trichechus senegalensis
  - Manatus Amazonensis,Trichechus inunguis

Clasifficatio

Ordo:Sirenia
- FamiliaProrastomidae(Cope, 1889)
  - Genus:Pezosiren(Domning, 2001)
  - Genus:Prorastomus(Owen, 1855)
- FamiliaProtosirenidae
  - Genus:Protosiren(Abel, 1907)
- Familia:Dugongidae
  - Subfamilia:Halitheriinae
    - Genus:Anisotherium(Kordos, 1979)
    - Genus:Eosiren(paraphyletic) (Andrews, 1902)
    - Genus:Eotheroides(Trouessart, 1905)
    - Genus:Halitherium(paraphyletic) (Fitzinger, 1842)
    - Genus:Indosiren(Von Koenigswald, 1952)
    - Genus:Miodugong(Deraniyagala, 1969)
    - Genus:Paralitherium(Kordos, 1977)
    - Genus:Prohalicore(Flot, 1887)
    - Genus:Prototherium(paraphyletic) (De Zigno, 1887)
    - Genus:Sirenavus(Kretzoi, 1941)
  - SubfamiliaHydrodamalinae
    - Genus:Dusisiren(paraphyletic) (Domning, 1978)
    - Genus:Hydrodamalis(Retzius, 1794)
    - Genus:Metaxytherium(paraphyletic) (De Christol, 1844)
  - SubfamiliaDugonginae
    - 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)
- FamiliaTrichechidae
  - SubfamiliaMiosireninae
    - Genus:Anomotherium(Siegfried, 1965)
    - Genus:Miosiren(Dollo, 1889)
  - Subfamilia:Trichechinae
    - Genus:Potamosiren(Reinhart, 1951)
    - Genus:Ribodon(Ameghino, 1883)
    - Genus:Trichechus(Linnaeus, 1758)