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Temporal range: Late Eocene-Holocene
Dugong Marsa Alam.jpg
A dugong in Marsa Alam
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Class: Mammalia
Order: Sirenia
Family: Dugongidae
Gray, 1821

See text

The Dugongidae are a family in the order of Sirenia.

The family has one surviving species, the dugong (Dugong dugon), one recently extinct species, Steller's sea cow (Hydrodamalis gigas), and a number of extinct genera known from fossil records.


The genera Eosiren, Eotheroides, and Prototherium have been assigned to Halitheriinae in the past, but recent cladistic analysis recovers these genera as basal to the clade formed by Trichechidae and Dugongidae. Moreover, Halitheriinae is paraphyletic with respect to Dugonginae and Hydrodamalinae, and further use of the name should be discontinued because the type genus is based on a non-diagnostic tooth.[4]


  1. ^ Shoshani, J. (2005). Wilson, D.E.; Reeder, D.M., eds. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0-8018-8221-0. OCLC 62265494. 
  2. ^ Jorge Vélez-Juarbe and Daryl P. Domning (2015). "Fossil Sirenia of the West Atlantic and Caribbean region. XI. Callistosiren boriquensis, gen. et sp. nov.". Journal of Vertebrate Paleontology. in press. doi:10.1080/02724634.2014.885034.
  3. ^ Vélez-Juarbe, J., and D. P. Domning, 2014. Fossil Sirenia of the West Atlantic and Caribbean region. X. Priscosiren atlantica, sp. nov. Journal of Vertebrate Paleontology 34(4):951-964. http://www.tandfonline.com/doi/full/10.1080/02724634.2013.815192#preview
  4. ^ M. Voss. 2014. On the invalidity of Halitherium schinzii Kaup, 1838 (Mammalia, Sirenia), with comments on systematic consequences. Zoosystematics and Evolution 90(1):87-93